diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7db594aa59..3a86dd3a50 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.12.1 - 12 April 2021
+### Fixed
+* Fixed C# extension not being recognized when adding Dockerfiles to a .NET project. [#2867](https://github.com/microsoft/vscode-docker/issues/2867)
+
 ## 1.12.0 - 12 April 2021
 ### Added
 * The extension now targets Docker Compose commands to files matching the `dockercompose` language ID. This raises the minimum required VS Code version to 1.55.0. [#2761](https://github.com/microsoft/vscode-docker/issues/2761)
diff --git a/package-lock.json b/package-lock.json
index fc5494f902..1f81538b4b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,11 +1,11 @@
 {
     "name": "vscode-docker",
-    "version": "1.12.0",
+    "version": "1.12.1",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
-            "version": "1.12.0",
+            "version": "1.12.1",
             "license": "SEE LICENSE IN LICENSE.md",
             "dependencies": {
                 "@azure/arm-appservice": "^6.1.0",
diff --git a/package.json b/package.json
index 4158e05f52..274a757d09 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "vscode-docker",
-    "version": "1.12.0",
+    "version": "1.12.1",
     "publisher": "ms-azuretools",
     "displayName": "Docker",
     "description": "Makes it easy to create, manage, and debug containerized applications.",
diff --git a/src/scaffolding/wizard/netCore/NetCoreGatherInformationStep.ts b/src/scaffolding/wizard/netCore/NetCoreGatherInformationStep.ts
index a8e8ad1d5a..0d852cbcf3 100644
--- a/src/scaffolding/wizard/netCore/NetCoreGatherInformationStep.ts
+++ b/src/scaffolding/wizard/netCore/NetCoreGatherInformationStep.ts
@@ -131,16 +131,15 @@ export class NetCoreGatherInformationStep extends GatherInformationStep<NetCoreS
     }
 
     private async getMinimumCSharpExtensionExports(): Promise<CSharpExtensionExports> {
-        const minCSharpVersion = new semver.SemVer(minCSharpVersionString);
         const cSharpExtension: vscode.Extension<CSharpExtensionExports> | undefined = vscode.extensions.getExtension(cSharpExtensionId);
         const cSharpExtensionVersion: semver.SemVer | undefined = cSharpExtension ? new semver.SemVer((<{ version: string }>cSharpExtension.packageJSON).version) : undefined;
 
         if (!cSharpExtension || !cSharpExtensionVersion) {
             throw new Error(localize('vscode-docker.scaffold.netCoreGatherInformationStep.noCSharpExtension', 'Cannot generate Dockerfiles for a .NET project unless the C# extension is installed.'));
-        } else if (cSharpExtensionVersion < minCSharpVersion) {
+        } else if (semver.lt(cSharpExtensionVersion, minCSharpVersionString)) {
             throw new Error(localize('vscode-docker.scaffold.netCoreGatherInformationStep.badVersionCSharpExtension', 'Cannot generate Dockerfiles for a .NET project unless version {0} or higher of the C# extension is installed.', minCSharpVersionString));
         }
 
-        return cSharpExtension.isActive ? await cSharpExtension.activate() : cSharpExtension.exports;
+        return await cSharpExtension.activate();
     }
 }
diff --git a/src/tasks/python/PythonExtensionHelper.ts b/src/tasks/python/PythonExtensionHelper.ts
index bad90fc6e5..85bf6b79e9 100644
--- a/src/tasks/python/PythonExtensionHelper.ts
+++ b/src/tasks/python/PythonExtensionHelper.ts
@@ -53,7 +53,7 @@ export namespace PythonExtensionHelper {
 
         const version = new semver.SemVer(pyExt.packageJSON.version);
 
-        if (version.compare(minPyExtensionVersion) < 0) {
+        if (semver.lt(version, minPyExtensionVersion)) {
             await vscode.window.showErrorMessage(localize('vscode-docker.tasks.pythonExt.pythonExtensionNotSupported', 'The installed Python extension does not meet the minimum requirements, please update to the latest version and try again.'));
             return undefined;
         }