diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8abcdc44..f9483b35 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -26,6 +26,9 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
 
+      - name: Set SOURCE_DATE_EPOCH
+        run: echo SOURCE_DATE_EPOCH=$(git log -1 --pretty=%ct) >> $GITHUB_ENV
+
       - name: Build
         run: |
           rpm-ostree compose image --format=ociarchive \
diff --git a/.github/workflows/publish-image.yml b/.github/workflows/publish-image.yml
index 951714e2..095a3bf9 100644
--- a/.github/workflows/publish-image.yml
+++ b/.github/workflows/publish-image.yml
@@ -32,6 +32,9 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0
 
+      - name: Set SOURCE_DATE_EPOCH
+        run: echo SOURCE_DATE_EPOCH=$(git log -1 --pretty=%ct) >> $GITHUB_ENV
+
       - name: Build and Push
         run: |
           echo "${{ secrets.QUAY_PASSWORD }}" | skopeo login -u "${{ secrets.QUAY_USER }}" \