diff --git a/.github/workflows/Fhi.VersionApi.CI.yml b/.github/workflows/Fhi.VersionApi.CI.yml
index 217f7cb..24be83e 100644
--- a/.github/workflows/Fhi.VersionApi.CI.yml
+++ b/.github/workflows/Fhi.VersionApi.CI.yml
@@ -15,9 +15,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
     - name: Setup .NET
-      uses: actions/setup-dotnet@v4
+      uses: actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9 # v4
       with:
         dotnet-version: 8.0.x
     - name: Restore dependencies