diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index d351b38ad..159f2b246 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -33,7 +33,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v2.5.0
       with:
         submodules: recursive
 
@@ -314,7 +314,7 @@ jobs:
 
     - name: Upload artifact
       if: ${{ github.repository == 'tildearrow/furnace' && github.ref_name == 'master' }}
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v3.1.1
       with:
         name: ${{ steps.package-identify.outputs.id }}
         path: ${{ steps.package-identify.outputs.filename }}