diff --git a/.github/workflows/lint_build_publish.yml b/.github/workflows/lint_build_publish.yml
index b8b9e36..fbd758a 100644
--- a/.github/workflows/lint_build_publish.yml
+++ b/.github/workflows/lint_build_publish.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: windows-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Add msbuild to PATH
         uses: microsoft/setup-msbuild@v2
@@ -18,14 +18,14 @@ jobs:
           vs-version: '[17.0, )'
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: 8.0.x # dotnet 9 breaks "dotnet format" command: https://github.com/dotnet/sdk/issues/43017
 
       - name: Format check
         run: dotnet format --verify-no-changes --verbosity diagnostic
 
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         with:
           path: ~/.nuget/packages
           key: nuget-${{ hashFiles('**/*.csproj') }}
@@ -44,7 +44,7 @@ jobs:
           DeployExtension: False
 
       - name: Upload Cycode.VisualStudio.Extension.14.0-16.0 artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: Cycode.VisualStudio.Extension.14.0-16.0
           if-no-files-found: error
@@ -52,7 +52,7 @@ jobs:
           path: src/extension/Cycode.VisualStudio.Extension.14.0-16.0/bin/Release/Cycode.VisualStudio.Extension.14.0-16.0.vsix
 
       - name: Upload Cycode.VisualStudio.Extension.17.0 artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: Cycode.VisualStudio.Extension.17.0
           if-no-files-found: error
@@ -106,7 +106,7 @@ jobs:
     name: Smoke test (${{ matrix.vs-name }})
     steps:
       - name: Download Cycode.VisualStudio.Extension.17.0 artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           name: Cycode.VisualStudio.Extension.17.0
 
diff --git a/src/extension/Cycode.VisualStudio.Extension.Shared/Cli/DTO/AiRemediationResult.cs b/src/extension/Cycode.VisualStudio.Extension.Shared/Cli/DTO/AiRemediationResult.cs
index b265dd4..87e8d14 100644
--- a/src/extension/Cycode.VisualStudio.Extension.Shared/Cli/DTO/AiRemediationResult.cs
+++ b/src/extension/Cycode.VisualStudio.Extension.Shared/Cli/DTO/AiRemediationResult.cs
@@ -1,5 +1,7 @@
 using Newtonsoft.Json;
 
+#nullable enable
+
 namespace Cycode.VisualStudio.Extension.Shared.Cli.DTO;
 
 public class AiRemediationResult {
diff --git a/src/extension/Cycode.VisualStudio.Extension.Shared/Cli/DTO/StatusResult.cs b/src/extension/Cycode.VisualStudio.Extension.Shared/Cli/DTO/StatusResult.cs
index 8e0d357..8e50c19 100644
--- a/src/extension/Cycode.VisualStudio.Extension.Shared/Cli/DTO/StatusResult.cs
+++ b/src/extension/Cycode.VisualStudio.Extension.Shared/Cli/DTO/StatusResult.cs
@@ -1,5 +1,7 @@
 using Newtonsoft.Json;
 
+#nullable enable
+
 namespace Cycode.VisualStudio.Extension.Shared.Cli.DTO;
 
 public class StatusResult {
diff --git a/src/extension/Cycode.VisualStudio.Extension.Shared/Components/TreeView/Nodes/FileNode.cs b/src/extension/Cycode.VisualStudio.Extension.Shared/Components/TreeView/Nodes/FileNode.cs
index c0caeac..189d599 100644
--- a/src/extension/Cycode.VisualStudio.Extension.Shared/Components/TreeView/Nodes/FileNode.cs
+++ b/src/extension/Cycode.VisualStudio.Extension.Shared/Components/TreeView/Nodes/FileNode.cs
@@ -3,5 +3,5 @@
 namespace Cycode.VisualStudio.Extension.Shared.Components.TreeView.Nodes;
 
 public class FileNode : BaseNode {
-    public BitmapSource Icon { get; set; }
+    public new BitmapSource Icon { get; set; }
 }
\ No newline at end of file
diff --git a/src/extension/Cycode.VisualStudio.Extension.Shared/Components/ViolationCards/SastViolationCardControl.xaml b/src/extension/Cycode.VisualStudio.Extension.Shared/Components/ViolationCards/SastViolationCardControl.xaml
index d081667..a67c70e 100644
--- a/src/extension/Cycode.VisualStudio.Extension.Shared/Components/ViolationCards/SastViolationCardControl.xaml
+++ b/src/extension/Cycode.VisualStudio.Extension.Shared/Components/ViolationCards/SastViolationCardControl.xaml
@@ -39,7 +39,7 @@
             <t:FieldValue Grid.Row="4" Grid.Column="1" x:Name="Subcategory" />
 
             <t:FieldName Grid.Row="5" Grid.Column="0" Text="Language:" />
-            <t:FieldValue Grid.Row="5" Grid.Column="1" x:Name="Language" />
+            <t:FieldValue Grid.Row="5" Grid.Column="1" x:Name="LanguageValue" />
 
             <t:FieldName Grid.Row="6" Grid.Column="0" Text="Security Tool:" />
             <t:FieldValue Grid.Row="6" Grid.Column="1" x:Name="SecurityTool" />
diff --git a/src/extension/Cycode.VisualStudio.Extension.Shared/Components/ViolationCards/SastViolationCardControl.xaml.cs b/src/extension/Cycode.VisualStudio.Extension.Shared/Components/ViolationCards/SastViolationCardControl.xaml.cs
index d3efca8..a719b69 100644
--- a/src/extension/Cycode.VisualStudio.Extension.Shared/Components/ViolationCards/SastViolationCardControl.xaml.cs
+++ b/src/extension/Cycode.VisualStudio.Extension.Shared/Components/ViolationCards/SastViolationCardControl.xaml.cs
@@ -35,7 +35,7 @@ public SastViolationCardControl(SastDetection detection) {
 
         File.Text = detection.DetectionDetails.FileName;
         Subcategory.Text = detection.DetectionDetails.Category;
-        Language.Text = string.Join(", ", detection.DetectionDetails.Languages);
+        LanguageValue.Text = string.Join(", ", detection.DetectionDetails.Languages);
 
         Dictionary<string, string> engineIdToDisplayName = new() {
             { "5db84696-88dc-11ec-a8a3-0242ac120002", "Semgrep OSS (Orchestrated by Cycode)" },
diff --git a/src/extension/Cycode.VisualStudio.Extension.Shared/Services/SuggestedActions/SuggestedActionsSource.cs b/src/extension/Cycode.VisualStudio.Extension.Shared/Services/SuggestedActions/SuggestedActionsSource.cs
index 58944b7..6ca3080 100644
--- a/src/extension/Cycode.VisualStudio.Extension.Shared/Services/SuggestedActions/SuggestedActionsSource.cs
+++ b/src/extension/Cycode.VisualStudio.Extension.Shared/Services/SuggestedActions/SuggestedActionsSource.cs
@@ -41,14 +41,14 @@ CancellationToken cancellationToken
         };
     }
 
-    public async Task<bool> HasSuggestedActionsAsync(
+    public Task<bool> HasSuggestedActionsAsync(
         ISuggestedActionCategorySet requestedActionCategories,
         SnapshotSpan range,
         CancellationToken cancellationToken
     ) {
-        if (TryUpdateTagger() == false) return false;
+        if (TryUpdateTagger() == false) return Task.FromResult(false);
 
-        return _tagger.GetErrorTags(range).Count > 0;
+        return Task.FromResult(_tagger.GetErrorTags(range).Count > 0);
     }
 
     public event EventHandler<EventArgs> SuggestedActionsChanged;