diff --git a/modules/blogging/app/Volo.BloggingTestApp/wwwroot/libs/squire-rte/squire.js b/modules/blogging/app/Volo.BloggingTestApp/wwwroot/libs/squire-rte/squire.js
index 7ce7ef2258..870905984b 100644
--- a/modules/blogging/app/Volo.BloggingTestApp/wwwroot/libs/squire-rte/squire.js
+++ b/modules/blogging/app/Volo.BloggingTestApp/wwwroot/libs/squire-rte/squire.js
@@ -1,2 +1,2 @@
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n=e.commonAncestorContainer,o=e.startContainer,i=e.endContainer;n&&n!==t&&!/^[OU]L$/.test(n.nodeName);)n=n.parentNode;if(!n||n===t)return null;for(o===n&&(o=o.childNodes[e.startOffset]),i===n&&(i=i.childNodes[e.endOffset]);o&&o.parentNode!==n;)o=o.parentNode;for(;i&&i.parentNode!==n;)i=i.parentNode;return[n,o,i]};rt.increaseListLevel=function(e){if(!e&&!(e=this.getSelection()))return this.focus();var t=this._root,n=_t(e,t);if(!n)return this.focus();var o=n[0],i=n[1],r=n[2];if(!i||i===o.firstChild)return this.focus();this._recordUndoState(e,this._isInUndoState);var a,s,d=o.nodeName,l=i.previousSibling;l.nodeName!==d&&(a=this._config.tagAttributes[d.toLowerCase()],l=this.createElement(d,a),o.insertBefore(l,i));do{s=i===r?null:i.nextSibling,l.appendChild(i)}while(i=s);return s=l.nextSibling,s&&B(s,t),this._getRangeAndRemoveBookmark(e),this.setSelection(e),this._updatePath(e,!0),se||this._docWasChanged(),this.focus()},rt.decreaseListLevel=function(e){if(!e&&!(e=this.getSelection()))return this.focus();var t=this._root,n=_t(e,t);if(!n)return this.focus();var o=n[0],i=n[1],r=n[2];i||(i=o.firstChild),r||(r=o.lastChild),this._recordUndoState(e,this._isInUndoState);var a,s=o.parentNode,d=r.nextSibling?x(o,r.nextSibling,s,t):o.nextSibling;if(s!==t&&"LI"===s.nodeName){for(s=s.parentNode;d;)a=d.nextSibling,r.appendChild(d),d=a;d=o.parentNode.nextSibling}var l=!/^[OU]L$/.test(s.nodeName);do{a=i===r?null:i.nextSibling,o.removeChild(i),l&&"LI"===i.nodeName&&(i=this.createDefaultBlock([y(i)])),s.insertBefore(i,d)}while(i=a);return o.firstChild||_(o),d&&B(d,t),this._getRangeAndRemoveBookmark(e),this.setSelection(e),this._updatePath(e,!0),se||this._docWasChanged(),this.focus()},rt._ensureBottomLine=function(){var e=this._root,t=e.lastElementChild;t&&t.nodeName===this._config.blockTag&&s(t)||e.appendChild(this.createDefaultBlock())},rt.setKeyHandler=function(e,t){return this._keyHandlers[e]=t,this},rt._getHTML=function(){return this._root.innerHTML},rt._setHTML=function(e){var t=this._root,n=t;n.innerHTML=e;do{E(n,t)}while(n=h(n,t));this._ignoreChange=!0},rt.getHTML=function(e){var t,n,o,i,r,a,s=[];if(e&&(a=this.getSelection())&&this._saveRangeToBookmark(a),ie)for(t=this._root,n=t;n=h(n,t);)n.textContent||n.querySelector("BR")||(o=this.createElement("BR"),n.appendChild(o),s.push(o));if(i=this._getHTML().replace(/\u200B/g,""),ie)for(r=s.length;r--;)_(s[r]);return a&&this._getRangeAndRemoveBookmark(a),i},rt.setHTML=function(e){var t,n,o,i=this._config,r=i.isSetHTMLSanitized?i.sanitizeToDOMFragment:null,a=this._root;"function"==typeof r?n=r(e,!1,this):(t=this.createElement("DIV"),t.innerHTML=e,n=this._doc.createDocumentFragment(),n.appendChild(y(t))),$e(n,i),Je(n,a,!1),b(n,a);for(var s=n;s=h(s,a);)E(s,a);for(this._ignoreChange=!0;o=a.lastChild;)a.removeChild(o);a.appendChild(n),E(a,a),this._undoIndex=-1,this._undoStack.length=0,this._undoStackLength=0,this._isInUndoState=!1;var d=this._getRangeAndRemoveBookmark()||this.createRange(a.firstChild,0);return this.saveUndoState(d),this._lastSelection=d,U.call(this),this._updatePath(d,!0),this},rt.insertElement=function(e,t){if(t||(t=this.getSelection()),t.collapse(!0),a(e))ye(t,e),t.setStartAfter(e);else{for(var n,o,i=this._root,r=Ae(t,i)||i;r!==i&&!r.nextSibling;)r=r.parentNode;r!==i&&(n=r.parentNode,o=x(n,r.nextSibling,i,i)),o?i.insertBefore(e,o):(i.appendChild(e),o=this.createDefaultBlock(),i.appendChild(o)),t.setStart(o,0),t.setEnd(o,0),ke(t)}return this.focus(),this.setSelection(t),this._updatePath(t),se||this._docWasChanged(),this},rt.insertImage=function(e,t){var n=this.createElement("IMG",R({src:e},t,!0));return this.insertElement(n),n},rt.linkRegExp=/\b((?:(?:ht|f)tps?:\/\/|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,}\/)(?:[^\s()<>]+|\([^\s()<>]+\))+(?:\((?:[^\s()<>]+|(?:\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))|([\w\-.%+]+@(?:[\w\-]+\.)+[A-Z]{2,}\b)(?:\?[^&?\s]+=[^&?\s]+(?:&[^&?\s]+=[^&?\s]+)*)?/i;var St=function(e,t,o){var i,r,a,s,d,l,c,h=e.ownerDocument,u=new n(e,4,function(e){return!g(e,t,"A")}),f=o.linkRegExp,p=o._config.tagAttributes.a;if(f)for(;i=u.nextNode();)for(r=i.data,a=i.parentNode;s=f.exec(r);)d=s.index,l=d+s[0].length,d&&(c=h.createTextNode(r.slice(0,d)),a.insertBefore(c,i)),c=o.createElement("A",R({href:s[1]?/^(?:ht|f)tps?:/i.test(s[1])?s[1]:"http://"+s[1]:"mailto:"+s[0]},p,!1)),c.textContent=r.slice(d,l),a.insertBefore(c,i),i.data=r=r.slice(l)};rt.insertHTML=function(e,t){var n,o,i,r,a,s,d,l=this._config,c=l.isInsertedHTMLSanitized?l.sanitizeToDOMFragment:null,u=this.getSelection(),f=this._doc;"function"==typeof c?r=c(e,t,this):(t&&(n=e.indexOf("\x3c!--StartFragment--\x3e"),o=e.lastIndexOf("\x3c!--EndFragment--\x3e"),n>-1&&o>-1&&(e=e.slice(n+20,o))),/<\/td>((?!<\/tr>)[\s\S])*$/i.test(e)&&(e="<TR>"+e+"</TR>"),/<\/tr>((?!<\/table>)[\s\S])*$/i.test(e)&&(e="<TABLE>"+e+"</TABLE>"),i=this.createElement("DIV"),i.innerHTML=e,r=f.createDocumentFragment(),r.appendChild(y(i))),this.saveUndoState(u);try{for(a=this._root,s=r,d={fragment:r,preventDefault:function(){this.defaultPrevented=!0},defaultPrevented:!1},St(r,r,this),$e(r,l),Je(r,a,!1),Ve(r),r.normalize();s=h(s,r);)E(s,a);t&&this.fireEvent("willPaste",d),d.defaultPrevented||(be(u,d.fragment,a),se||this._docWasChanged(),u.collapse(!1),this._ensureBottomLine()),this.setSelection(u),this._updatePath(u,!0),t&&this.focus()}catch(e){this.didError(e)}return this};var yt=function(e){return e.split("&").join("&amp;").split("<").join("&lt;").split(">").join("&gt;").split('"').join("&quot;")};rt.insertPlainText=function(e,t){var n=this.getSelection();if(n.collapsed&&g(n.startContainer,this._root,"PRE")){var o,i,r=n.startContainer,a=n.startOffset;return r&&r.nodeType===H||(o=this._doc.createTextNode(""),r.insertBefore(o,r.childNodes[a]),r=o,a=0),i={text:e,preventDefault:function(){this.defaultPrevented=!0},defaultPrevented:!1},t&&this.fireEvent("willPaste",i),i.defaultPrevented||(e=i.text,r.insertData(a,e),n.setStart(r,a+e.length),n.collapse(!0)),this.setSelection(n),this}var s,d,l,c,h=e.split("\n"),u=this._config,f=u.blockTag,p=u.blockAttributes,m="</"+f+">",v="<"+f;for(s in p)v+=" "+s+'="'+yt(p[s])+'"';for(v+=">",d=0,l=h.length;d<l;d+=1)c=h[d],c=yt(c).replace(/ (?= )/g,"&nbsp;"),h[d]=v+(c||"<BR>")+m;return this.insertHTML(h.join(""),t)};var Tt=function(e,t,n){return function(){return this[e](t,n),this.focus()}};rt.addStyles=function(e){if(e){var t=this._doc.documentElement.firstChild,n=this.createElement("STYLE",{type:"text/css"});n.appendChild(this._doc.createTextNode(e)),t.appendChild(n)}return this},rt.bold=Tt("changeFormat",{tag:"B"}),rt.italic=Tt("changeFormat",{tag:"I"}),rt.underline=Tt("changeFormat",{tag:"U"}),rt.strikethrough=Tt("changeFormat",{tag:"S"}),rt.subscript=Tt("changeFormat",{tag:"SUB"},{tag:"SUP"}),rt.superscript=Tt("changeFormat",{tag:"SUP"},{tag:"SUB"}),rt.removeBold=Tt("changeFormat",null,{tag:"B"}),rt.removeItalic=Tt("changeFormat",null,{tag:"I"}),rt.removeUnderline=Tt("changeFormat",null,{tag:"U"}),rt.removeStrikethrough=Tt("changeFormat",null,{tag:"S"}),rt.removeSubscript=Tt("changeFormat",null,{tag:"SUB"}),rt.removeSuperscript=Tt("changeFormat",null,{tag:"SUP"}),rt.makeLink=function(e,t){var n=this.getSelection();if(n.collapsed){var o=e.indexOf(":")+1;if(o)for(;"/"===e[o];)o+=1;ye(n,this._doc.createTextNode(e.slice(o)))}return t=R(R({href:e},t,!0),this._config.tagAttributes.a,!1),this.changeFormat({tag:"A",attributes:t},{tag:"A"},n),this.focus()},rt.removeLink=function(){return this.changeFormat(null,{tag:"A"},this.getSelection(),!0),this.focus()},rt.setFontFace=function(e){var t=this._config.classNames.fontFamily;return this.changeFormat(e?{tag:"SPAN",attributes:{class:t,style:"font-family: "+e+", sans-serif;"}}:null,{tag:"SPAN",attributes:{class:t}}),this.focus()},rt.setFontSize=function(e){var t=this._config.classNames.fontSize;return this.changeFormat(e?{tag:"SPAN",attributes:{class:t,style:"font-size: "+("number"==typeof e?e+"px":e)}}:null,{tag:"SPAN",attributes:{class:t}}),this.focus()},rt.setTextColour=function(e){var t=this._config.classNames.colour;return this.changeFormat(e?{tag:"SPAN",attributes:{class:t,style:"color:"+e}}:null,{tag:"SPAN",attributes:{class:t}}),this.focus()},rt.setHighlightColour=function(e){var t=this._config.classNames.highlight;return this.changeFormat(e?{tag:"SPAN",attributes:{class:t,style:"background-color:"+e}}:e,{tag:"SPAN",attributes:{class:t}}),this.focus()},rt.setTextAlignment=function(e){return this.forEachBlock(function(t){var n=t.className.split(/\s+/).filter(function(e){return!!e&&!/^align/.test(e)}).join(" ");e?(t.className=n+" align-"+e,t.style.textAlign=e):(t.className=n,t.style.textAlign="")},!0),this.focus()},rt.setTextDirection=function(e){return this.forEachBlock(function(t){e?t.dir=e:t.removeAttribute("dir")},!0),this.focus()};var Et=function(e){for(var t,o=this._root,i=this._doc,r=i.createDocumentFragment(),a=l(e,o);t=a.nextNode();){var s,d,c=t.querySelectorAll("BR"),h=[],u=c.length;for(s=0;s<u;s+=1)h[s]=Xe(c[s],!1);for(;u--;)d=c[u],h[u]?S(d,i.createTextNode("\n")):_(d);for(c=t.querySelectorAll("CODE"),u=c.length;u--;)_(c[u]);r.childNodes.length&&r.appendChild(i.createTextNode("\n")),r.appendChild(y(t))}for(a=new n(r,4);t=a.nextNode();)t.data=t.data.replace(/ /g," ");return r.normalize(),E(this.createElement("PRE",this._config.tagAttributes.pre,[r]),o)},bt=function(e){for(var t,o,i,r,a,s,d=this._doc,l=this._root,c=e.querySelectorAll("PRE"),h=c.length;h--;){for(t=c[h],o=new n(t,4);i=o.nextNode();){for(r=i.data,r=r.replace(/ (?= )/g," "),a=d.createDocumentFragment();(s=r.indexOf("\n"))>-1;)a.appendChild(d.createTextNode(r.slice(0,s))),a.appendChild(d.createElement("BR")),r=r.slice(s+1);i.parentNode.insertBefore(a,i),i.data=r}b(t,l),S(t,y(t))}return e};rt.code=function(){var e=this.getSelection();return e.collapsed||d(e.commonAncestorContainer)?this.modifyBlocks(Et,e):this.changeFormat({tag:"CODE",attributes:this._config.tagAttributes.code},null,e),this.focus()},rt.removeCode=function(){var e=this.getSelection();return g(e.commonAncestorContainer,this._root,"PRE")?this.modifyBlocks(bt,e):this.changeFormat(null,{tag:"CODE"},e),this.focus()},rt.toggleCode=function(){return this.hasFormat("PRE")||this.hasFormat("CODE")?this.removeCode():this.code(),this},rt.removeAllFormatting=function(e){if(!e&&!(e=this.getSelection())||e.collapsed)return this;for(var t=this._root,n=e.commonAncestorContainer;n&&!s(n);)n=n.parentNode;if(n||(Pe(e,t),n=t),n.nodeType===H)return this;this.saveUndoState(e),Le(e,n,n,t);for(var o,i,r=n.ownerDocument,a=e.startContainer,d=e.startOffset,l=e.endContainer,c=e.endOffset,h=r.createDocumentFragment(),u=r.createDocumentFragment(),f=x(l,c,n,t),p=x(a,d,n,t);p!==f;)o=p.nextSibling,h.appendChild(p),p=o;return F(this,h,u),u.normalize(),p=u.firstChild,o=u.lastChild,i=n.childNodes,p?(n.insertBefore(u,f),d=ce.call(i,p),c=ce.call(i,o)+1):(d=ce.call(i,f),c=d),e.setStart(n,d),e.setEnd(n,c),L(n,e),ke(e),this.setSelection(e),this._updatePath(e,!0),this.focus()},rt.increaseQuoteLevel=Tt("modifyBlocks",ft),rt.decreaseQuoteLevel=Tt("modifyBlocks",pt),rt.makeUnorderedList=Tt("modifyBlocks",vt),rt.makeOrderedList=Tt("modifyBlocks",Nt),rt.removeList=Tt("modifyBlocks",Ct),P.isInline=a,P.isBlock=s,P.isContainer=d,P.getBlockWalker=l,P.getPreviousBlock=c,P.getNextBlock=h,P.areAlike=f,P.hasTagAttributes=p,P.getNearest=g,P.isOrContains=v,P.detach=_,P.replaceWith=S,P.empty=y,P.getNodeBefore=_e,P.getNodeAfter=Se,P.insertNodeInRange=ye,P.extractContentsOfRange=Te,P.deleteContentsOfRange=Ee,P.insertTreeFragmentIntoRange=be,P.isNodeContainedInRange=xe,P.moveRangeBoundariesDownTree=ke,P.moveRangeBoundariesUpTree=Le,P.getStartBlockOfRange=Ae,P.getEndBlockOfRange=Oe,P.contentWalker=Be,P.rangeDoesStartAtBlockBoundary=De,P.rangeDoesEndAtBlockBoundary=Re,P.expandRangeToBlockBoundaries=Pe,P.onPaste=ot,P.addLinks=St,P.splitBlock=ut,P.startSelectionId="squire-selection-start",P.endSelectionId=ct,"object"==typeof exports?module.exports=P:"function"==typeof define&&define.amd?define(function(){return P}):(G.Squire=P,top!==G&&"true"===e.documentElement.getAttribute("data-squireinit")&&(G.editor=new P(e),G.onEditorLoad&&(G.onEditorLoad(G.editor),G.onEditorLoad=null)))}(document);
\ No newline at end of file
diff --git a/modules/blogging/app/Volo.BloggingTestApp/yarn.lock b/modules/blogging/app/Volo.BloggingTestApp/yarn.lock
index 6f0078f2c9..13a712e13c 100644
--- a/modules/blogging/app/Volo.BloggingTestApp/yarn.lock
+++ b/modules/blogging/app/Volo.BloggingTestApp/yarn.lock
@@ -2213,9 +2213,9 @@ pumpify@^1.3.5:
     inherits "^2.0.3"
     pump "^2.0.0"
 
-"raphael@git+https://github.com/nhn/raphael.git#2.2.0-c":
+"raphael@https://github.com/nhn/raphael.git#2.2.0-c":
   version "2.2.0-c"
-  resolved "git+https://github.com/nhn/raphael.git#78a6ed3ec269f33b6457b0ec66f8c3d1f2ed70e0"
+  resolved "https://github.com/nhn/raphael.git#78a6ed3ec269f33b6457b0ec66f8c3d1f2ed70e0"
   dependencies:
     eve "git://github.com/adobe-webplatform/eve.git#eef80ed"
 
diff --git a/modules/blogging/src/Volo.Blogging.Application/Volo/Blogging/Posts/PostAppService.cs b/modules/blogging/src/Volo.Blogging.Application/Volo/Blogging/Posts/PostAppService.cs
index be51085f86..d798814caa 100644
--- a/modules/blogging/src/Volo.Blogging.Application/Volo/Blogging/Posts/PostAppService.cs
+++ b/modules/blogging/src/Volo.Blogging.Application/Volo/Blogging/Posts/PostAppService.cs
@@ -180,14 +180,14 @@ namespace Volo.Blogging.Posts
             return url;
         }
 
-        private async Task SaveTags(List<String> newTags, Post post)
+        private async Task SaveTags(ICollection<string> newTags, Post post)
         {
             await RemoveOldTags(newTags, post);
 
             await AddNewTags(newTags, post);
         }
 
-        private async Task RemoveOldTags(List<string> newTags, Post post)
+        private async Task RemoveOldTags(ICollection<string> newTags, Post post)
         {
             foreach (var oldTag in post.Tags)
             {
@@ -209,7 +209,7 @@ namespace Volo.Blogging.Posts
             }
         }
 
-        private async Task AddNewTags(List<string> newTags, Post post)
+        private async Task AddNewTags(IEnumerable<string> newTags, Post post)
         {
             var tags = await _tagRepository.GetListAsync(post.BlogId);
 
@@ -219,7 +219,7 @@ namespace Volo.Blogging.Posts
 
                 if (tag == null)
                 {
-                    tag = await _tagRepository.InsertAsync(new Tag(post.BlogId, newTag, 1));
+                    tag = await _tagRepository.InsertAsync(new Tag(GuidGenerator.Create(), post.BlogId, newTag, 1));
                 }
                 else
                 {
@@ -249,7 +249,7 @@ namespace Volo.Blogging.Posts
             return new List<string>(tags.Split(",").Select(t => t.Trim()));
         }
 
-        private Task<List<PostWithDetailsDto>> FilterPostsByTag(List<PostWithDetailsDto> allPostDtos, Tag tag)
+        private Task<List<PostWithDetailsDto>> FilterPostsByTag(IEnumerable<PostWithDetailsDto> allPostDtos, Tag tag)
         {
             var filteredPostDtos = allPostDtos.Where(p => p.Tags?.Any(t => t.Id == tag.Id) ?? false).ToList();
            
diff --git a/modules/blogging/src/Volo.Blogging.Domain/Volo/Blogging/Tagging/Tag.cs b/modules/blogging/src/Volo.Blogging.Domain/Volo/Blogging/Tagging/Tag.cs
index 28d14d885d..fb8f97a4dc 100644
--- a/modules/blogging/src/Volo.Blogging.Domain/Volo/Blogging/Tagging/Tag.cs
+++ b/modules/blogging/src/Volo.Blogging.Domain/Volo/Blogging/Tagging/Tag.cs
@@ -20,8 +20,9 @@ namespace Volo.Blogging.Tagging
 
         }
 
-        public Tag(Guid blogId, [NotNull] string name, int usageCount = 0, string description = null)
+        public Tag(Guid id, Guid blogId, [NotNull] string name, int usageCount = 0, string description = null)
         {
+            Id = id;
             Name = Check.NotNullOrWhiteSpace(name, nameof(name));
             BlogId = blogId;
             Description = description;
diff --git a/modules/blogging/test/Volo.Blogging.Domain.Tests/Volo/Abp/Blogging/Tagging/Tag_Tests.cs b/modules/blogging/test/Volo.Blogging.Domain.Tests/Volo/Abp/Blogging/Tagging/Tag_Tests.cs
index a4368a6341..25ded93f72 100644
--- a/modules/blogging/test/Volo.Blogging.Domain.Tests/Volo/Abp/Blogging/Tagging/Tag_Tests.cs
+++ b/modules/blogging/test/Volo.Blogging.Domain.Tests/Volo/Abp/Blogging/Tagging/Tag_Tests.cs
@@ -14,7 +14,7 @@ namespace Volo.Blogging
         [InlineData("bbb")]
         public void SetName(string name)
         {
-            var tag = new Tag(Guid.NewGuid(), "abp", 0, "abp tag");
+            var tag = new Tag(Guid.NewGuid(), Guid.NewGuid(), "abp", 0, "abp tag");
             tag.SetName(name);
             tag.Name.ShouldBe(name);
         }
@@ -25,7 +25,7 @@ namespace Volo.Blogging
         [InlineData(3)]
         public void IncreaseUsageCount(int number)
         {
-            var tag = new Tag(Guid.NewGuid(), "abp", 0, "abp tag");
+            var tag = new Tag(Guid.NewGuid(), Guid.NewGuid(), "abp", 0, "abp tag");
             tag.IncreaseUsageCount(number);
             tag.UsageCount.ShouldBe(number);
         }
@@ -36,7 +36,7 @@ namespace Volo.Blogging
         [InlineData(3)]
         public void DecreaseUsageCount(int number)
         {
-            var tag = new Tag(Guid.NewGuid(), "abp",  10, "abp tag");
+            var tag = new Tag(Guid.NewGuid(), Guid.NewGuid(), "abp",  10, "abp tag");
             tag.DecreaseUsageCount(number);
             tag.UsageCount.ShouldBe(10 - number);
         }
@@ -44,7 +44,7 @@ namespace Volo.Blogging
         [Fact]
         public void DecreaseUsageCount_Should_Greater_ThanOrEqual_Zero()
         {
-            var tag = new Tag(Guid.NewGuid(), "abp", 10, "abp tag");
+            var tag = new Tag(Guid.NewGuid(), Guid.NewGuid(), "abp", 10, "abp tag");
             tag.DecreaseUsageCount(100);
             tag.UsageCount.ShouldBe(0);
         }
@@ -54,7 +54,7 @@ namespace Volo.Blogging
         [InlineData("bbb")]
         public void SetDescription(string description)
         {
-            var tag = new Tag(Guid.NewGuid(), "abp", 0, "abp tag");
+            var tag = new Tag(Guid.NewGuid(), Guid.NewGuid(), "abp", 0, "abp tag");
             tag.SetDescription(description);
             tag.Description.ShouldBe(description);
         }
diff --git a/modules/blogging/test/Volo.Blogging.TestBase/Volo/Blogging/BloggingTestDataBuilder.cs b/modules/blogging/test/Volo.Blogging.TestBase/Volo/Blogging/BloggingTestDataBuilder.cs
index 67d8049a06..cd2168d9df 100644
--- a/modules/blogging/test/Volo.Blogging.TestBase/Volo/Blogging/BloggingTestDataBuilder.cs
+++ b/modules/blogging/test/Volo.Blogging.TestBase/Volo/Blogging/BloggingTestDataBuilder.cs
@@ -43,8 +43,8 @@ namespace Volo.Blogging
             await _postRepository.InsertAsync(new Post(_testData.Blog1Post2Id, _testData.Blog1Id, "title2", "coverImage2", "url2"));
             await _commentRepository.InsertAsync(new Comment(_testData.Blog1Post1Comment1Id,_testData.Blog1Post1Id,null,"text"));
             await _commentRepository.InsertAsync(new Comment(_testData.Blog1Post1Comment2Id, _testData.Blog1Post1Id, _testData.Blog1Post1Comment1Id, "text"));
-            await _tagRepository.InsertAsync(new Tag(_testData.Blog1Id, _testData.Tag1Name, 10));
-            await _tagRepository.InsertAsync(new Tag(_testData.Blog1Id, _testData.Tag2Name));
+            await _tagRepository.InsertAsync(new Tag(Guid.NewGuid(), _testData.Blog1Id, _testData.Tag1Name, 10));
+            await _tagRepository.InsertAsync(new Tag(Guid.NewGuid(), _testData.Blog1Id, _testData.Tag2Name));
 
         }
     }