diff --git a/Build/package/cpptools_extension_pack.yml b/Build/package/cpptools_extension_pack.yml
index a2f1e8820..b548729c7 100644
--- a/Build/package/cpptools_extension_pack.yml
+++ b/Build/package/cpptools_extension_pack.yml
@@ -44,5 +44,5 @@ extends:
 
       - template: /Build/package/jobs_package_vsix.yml@self
         parameters:
-          vsixName: cpptools-extension-pack.vsix
+          vsixName: cpptools-extension-pack
           srcDir: ExtensionPack
\ No newline at end of file
diff --git a/Build/package/cpptools_themes.yml b/Build/package/cpptools_themes.yml
index f15eb25fa..ad5862dc6 100644
--- a/Build/package/cpptools_themes.yml
+++ b/Build/package/cpptools_themes.yml
@@ -44,5 +44,5 @@ extends:
 
       - template: /Build/package/jobs_package_vsix.yml@self
         parameters:
-          vsixName: cpptools-themes.vsix
+          vsixName: cpptools-themes
           srcDir: Themes
\ No newline at end of file
diff --git a/Build/package/jobs_package_vsix.yml b/Build/package/jobs_package_vsix.yml
index e5f6f71a8..31938fcf5 100644
--- a/Build/package/jobs_package_vsix.yml
+++ b/Build/package/jobs_package_vsix.yml
@@ -11,7 +11,7 @@ parameters:
 
 jobs:
 - job: package
-  displayName: Build ${{ parameters.vsixName }}
+  displayName: Build ${{ parameters.vsixName }}.vsix
   timeoutInMinutes: 30
   cancelTimeoutInMinutes: 1
   templateContext:
@@ -26,7 +26,7 @@ jobs:
       autoBaseline: false
     outputs:
     - output: pipelineArtifact
-      displayName: '${{ parameters.vsixName }}'
+      displayName: '${{ parameters.vsixName }}.vsix'
       targetPath: $(Build.ArtifactStagingDirectory)\vsix
       artifactName: vsix
 
@@ -38,10 +38,8 @@ jobs:
     inputs:
       version: 22.x
 
-  - task: Npm@0
-    displayName: Install vsce
-    inputs:
-      arguments: --global @vscode/vsce
+  - script: npm install --global @vscode/vsce@3.1.1
+    displayName: install vsce@3.1.1
 
   - task: geeklearningio.gl-vsts-tasks-yarn.yarn-installer-task.YarnInstaller@3
     displayName: Use Yarn 1.x
@@ -51,11 +49,27 @@ jobs:
 
   - script: |
       cd $(Build.SourcesDirectory)\${{ parameters.srcDir }}
-      vsce package -o $(Build.ArtifactStagingDirectory)\vsix\${{ parameters.vsixName }}
+      vsce package -o $(Build.ArtifactStagingDirectory)\vsix\${{ parameters.vsixName }}.vsix
     displayName: Run VSCE to package vsix
 
-  - task: Npm@0
-    displayName: Uninstall vsce
+# sign the vsix
+  - script: vsce generate-manifest -i $(Build.ArtifactStagingDirectory)\vsix\${{ parameters.vsixName }}.vsix -o $(Build.ArtifactStagingDirectory)\vsix\${{ parameters.vsixName }}.manifest
+    displayName: generate manifest
+    workingDirectory: $(Build.SourcesDirectory)\${{ parameters.srcDir }}
+  - script: copy $(Build.ArtifactStagingDirectory)\vsix\${{ parameters.vsixName }}.manifest $(Build.ArtifactStagingDirectory)\vsix\${{ parameters.vsixName }}.signature.p7s
+    displayName: prepare manifest for signing
+    workingDirectory: $(Build.SourcesDirectory)\${{ parameters.srcDir }}
+  - task: NuGetToolInstaller@1
+    displayName: Install NuGet
+  - task: NuGetAuthenticate@1
+    displayName: Authenticate NuGet
+  - script: nuget restore $(Build.SourcesDirectory)\Build\signing\SignVsix.proj -PackagesDirectory $(Build.SourcesDirectory)\Build\signing\packages
+    displayName: Restore MicroBuild Core
+  - task: MSBuild@1
+    displayName: Sign the vsix
     inputs:
-      command: uninstall
-      arguments: --global @vscode/vsce
\ No newline at end of file
+      solution: $(Build.SourcesDirectory)\Build\signing\SignVsix.proj
+      msbuildArguments: /p:SignType=${{ parameters.signType }}
+
+  - script: npm uninstall --global @vscode/vsce
+    displayName: uninstall vsce
diff --git a/Build/publish/cpptools_extension_pack.yml b/Build/publish/cpptools_extension_pack.yml
index e78aba160..b5e55d7bf 100644
--- a/Build/publish/cpptools_extension_pack.yml
+++ b/Build/publish/cpptools_extension_pack.yml
@@ -39,5 +39,5 @@ extends:
       jobs:
       - template: /Build/publish/jobs_publish_vsix.yml@self
         parameters:
-          vsixName: cpptools-extension-pack.vsix
+          vsixName: cpptools-extension-pack
 
diff --git a/Build/publish/cpptools_themes.yml b/Build/publish/cpptools_themes.yml
index 4e35a50c3..1659dff10 100644
--- a/Build/publish/cpptools_themes.yml
+++ b/Build/publish/cpptools_themes.yml
@@ -39,5 +39,5 @@ extends:
       jobs:
       - template: /Build/publish/jobs_publish_vsix.yml@self
         parameters:
-          vsixName: cpptools-themes.vsix
+          vsixName: cpptools-themes
 
diff --git a/Build/publish/jobs_publish_vsix.yml b/Build/publish/jobs_publish_vsix.yml
index 44016f494..fd3f9cc89 100644
--- a/Build/publish/jobs_publish_vsix.yml
+++ b/Build/publish/jobs_publish_vsix.yml
@@ -37,7 +37,7 @@ jobs:
         Write-Host "##vso[task.setvariable variable=AAD_TOKEN;issecret=true]$aadToken"
 
   - script: |
-      vsce publish --packagePath $(Build.StagingDirectory)\vsix\${{ parameters.vsixName }}
+      npx @vscode/vsce@latest publish -i $(Build.StagingDirectory)\vsix\${{ parameters.vsixName }}.vsix --manifestPath $(Build.StagingDirectory)\vsix\${{ parameters.vsixName }}.manifest --signaturePath $(Build.StagingDirectory)\vsix\${{ parameters.vsixName }}.signature.p7s
     displayName: Publish to Marketplace
     env:
       VSCE_PAT: $(AAD_TOKEN)
diff --git a/ExtensionPack/README.md b/ExtensionPack/README.md
index 3caab62bd..08e41cbe2 100644
--- a/ExtensionPack/README.md
+++ b/ExtensionPack/README.md
@@ -3,5 +3,5 @@
 This extension pack includes a set of popular extensions for C++ development in Visual Studio Code:
 * [C/C++](https://marketplace.visualstudio.com/items?itemName=ms-vscode.cpptools)
 * [C/C++ Themes](https://marketplace.visualstudio.com/items?itemName=ms-vscode.cpptools-themes)
-* [C/C++ Dev Tools](https://marketplace.visualstudio.com/items?itemName=ms-vscode.cpp-devtools)
+* [C/C++ DevTools](https://marketplace.visualstudio.com/items?itemName=ms-vscode.cpp-devtools)
 * [CMake Tools](https://marketplace.visualstudio.com/items?itemName=ms-vscode.cmake-tools)