diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f3361155..a7cdc0ab 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,6 +27,9 @@ 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 08cb62e8..fc304992 100644
--- a/.github/workflows/publish-image.yml
+++ b/.github/workflows/publish-image.yml
@@ -34,6 +34,9 @@ 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) >> $GITHUB_ENV
+
       - name: Build and Push
         run: |
           echo "${{ secrets.QUAY_PASSWORD }}" | skopeo login -u "${{ secrets.QUAY_USER }}" \