diff --git a/.github/workflows/Publish.yml b/.github/workflows/Publish.yml
index 0717fce8..07609214 100644
--- a/.github/workflows/Publish.yml
+++ b/.github/workflows/Publish.yml
@@ -210,7 +210,7 @@ jobs:
           ref: ${{ env.CHECKOUT_REF }}
 
       - name: Setup Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v7
         with:
           python-version: "3.x"
 
diff --git a/.github/workflows/Release.yml b/.github/workflows/Release.yml
index 4ee0c20d..31d9377d 100644
--- a/.github/workflows/Release.yml
+++ b/.github/workflows/Release.yml
@@ -77,7 +77,7 @@ jobs:
           dotnet-version: ${{ env.DOTNET_VERSION }}
 
       - name: Setup Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v7
         with:
           python-version: ${{ env.PYTHON_VERSION }}
 
diff --git a/Directory.Build.props b/Directory.Build.props
index 5bf3fbf8..bb00806b 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -112,7 +112,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="All"/>
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="10.0.401" PrivateAssets="All"/>
     <PackageReference Include="Roslynator.Analyzers" Version="4.12.9">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
diff --git a/lib/trends_FIR/sp15/Sp15.cs b/lib/trends_FIR/sp15/Sp15.cs
index b2736c2d..687d280f 100644
--- a/lib/trends_FIR/sp15/Sp15.cs
+++ b/lib/trends_FIR/sp15/Sp15.cs
@@ -253,13 +253,13 @@ public sealed class Sp15 : AbstractBase
         double[]? ringRented = Period > StackallocThreshold ? ArrayPool<double>.Shared.Rent(Period) : null;
         Span<double> ring = Period <= StackallocThreshold
             ? stackalloc double[Period]
-            : ringRented!.AsSpan(0, Period);
+            : ringRented.AsSpan(0, Period);
 
         // Allocate NaN-corrected values array
         double[]? cleanRented = len > StackallocThreshold ? ArrayPool<double>.Shared.Rent(len) : null;
         Span<double> clean = len <= StackallocThreshold
             ? stackalloc double[len]
-            : cleanRented!.AsSpan(0, len);
+            : cleanRented.AsSpan(0, len);
 
         try
         {
diff --git a/quantower/IndicatorExtensions.cs b/quantower/IndicatorExtensions.cs
index f4194678..cb44f749 100644
--- a/quantower/IndicatorExtensions.cs
+++ b/quantower/IndicatorExtensions.cs
@@ -105,7 +105,7 @@ public static class IndicatorExtensions
         var lastTime = data.Time(data.Count - 1);
         var firstTime = data.Time(0);
 
-        IChartWindowCoordinatesConverter safeConverter = converter!;
+        IChartWindowCoordinatesConverter safeConverter = converter;
         DateTime tLeft = safeConverter.GetTime(clientRect.Left);
         DateTime leftTime = tLeft > lastTime ? tLeft : lastTime;
 
@@ -158,7 +158,7 @@ public static class IndicatorExtensions
         var lastTime = data.Time(data.Count - 1);
         var firstTime = data.Time(0);
 
-        IChartWindowCoordinatesConverter safeConverter = converter!;
+        IChartWindowCoordinatesConverter safeConverter = converter;
         DateTime tLeft = safeConverter.GetTime(clientRect.Left);
         DateTime leftTime = tLeft > lastTime ? tLeft : lastTime;