diff --git a/.github/workflows/build-docker.yml b/.github/workflows/build-docker.yml
index 82a028434..0fc273078 100644
--- a/.github/workflows/build-docker.yml
+++ b/.github/workflows/build-docker.yml
@@ -32,7 +32,7 @@ jobs:
             trusted-substituters = https://cache.nixos.org https://nix-bincache.rory.gay
 
       - name: Build the docker image
-        run: nix build .#containers.x86_64-linux.docker.${{ matrix.package }}
+        run: nix build --accept-flake-config .#containers.x86_64-linux.docker.${{ matrix.package }}
       - run: docker load < result
       - name: downcase REPO
         run: echo "REPO=${GITHUB_REPOSITORY,,}" >>${GITHUB_ENV}
diff --git a/.github/workflows/nix-build.yml b/.github/workflows/nix-build.yml
index d266bd7bd..9dcf1cb31 100644
--- a/.github/workflows/nix-build.yml
+++ b/.github/workflows/nix-build.yml
@@ -17,6 +17,6 @@ jobs:
           trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= nix-bincache.rory.gay:663PIW8xxgIImxLcsokODWI2PHFWXvzJEfjX6TaIjxQ=
           trusted-substituters = https://cache.nixos.org https://nix-bincache.rory.gay
 
-    - run: nix build -L -j auto
-    - run: nix develop --command echo OK
-    - run: nix flake check -vL -j auto
+    - run: nix build --accept-flake-config -L -j auto
+    - run: nix develop --accept-flake-config --command echo OK
+    - run: nix flake check --accept-flake-config -vL -j auto