diff --git a/.github/workflows/10_build.yml b/.github/workflows/10-build.yml
similarity index 90%
rename from .github/workflows/10_build.yml
rename to .github/workflows/10-build.yml
index 0e70206..a42a392 100644
--- a/.github/workflows/10_build.yml
+++ b/.github/workflows/10-build.yml
@@ -22,6 +22,10 @@ jobs:
         rm -rf "${{ github.workspace }}"
         mkdir -p "${{ github.workspace }}"
 
+    - name: Set outputs
+      id: vars
+      run: echo "sha_short=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
+
     - name: Login to GitHub Container Registry
       uses: docker/login-action@v3
       with:
@@ -64,7 +68,7 @@ jobs:
     - name: Upload artifacts
       uses: actions/upload-artifact@v4
       with:
-        name: picoboot-${{ github.sha }}
+        name: picoboot-${{ steps.vars.outputs.sha_short }}
         path: |
           picoboot_full.uf2
           picoboot.uf2