diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index c4fbbb6..7152848 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -39,6 +39,7 @@ jobs:
   # https://docs.docker.com/build/ci/github-actions/manage-tags-labels/
   package:
     runs-on: ubuntu-latest
+    needs: release # Wait for binary cache to propagate
     steps:
       - name: Docker meta
         id: meta
diff --git a/Dockerfile b/Dockerfile
index 76d0312..9f983bd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,6 +9,7 @@ WORKDIR /tmp/build
 RUN nix \
     --extra-experimental-features "nix-command flakes" \
     --option filter-syscalls false \
+    --accept-flake-config \
     build
 
 # Copy the Nix store closure into a directory. The Nix store closure is the