diff --git a/.github/workflows/dotnet.yml b/.github/workflows/dotnet.yml
index 60a821ec1..d20d77a49 100644
--- a/.github/workflows/dotnet.yml
+++ b/.github/workflows/dotnet.yml
@@ -33,7 +33,7 @@ jobs:
         with:
           file: |
             "**/SolutionAssemblyInfo.cs"
-          version: $FlowVersion.$BUILD_NUMBER
+          version: ${{ $env.FlowVersion }}.${{ $env.BUILD_NUMBER }}
       - uses: actions/cache@v4
         name: Restore Nuget Cache
         with: