diff --git a/.github/workflows/automate-update.yml b/.github/workflows/automate-update.yml
index 5b09c183..e7d9071a 100644
--- a/.github/workflows/automate-update.yml
+++ b/.github/workflows/automate-update.yml
@@ -6,6 +6,7 @@ on:
 env:
   NIXPKGS_ALLOW_INSECURE: "1"
   NIXPKGS_ALLOW_BROKEN: "1"
+  NIXPKGS_ALLOW_UNFREE: "1"
 
   # GitHub bot
   GIT_AUTHOR_NAME: "github-actions[bot]"
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3396bc35..74cf294c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -3,6 +3,7 @@ on: [pull_request, push]
 env:
   NIXPKGS_ALLOW_INSECURE: "1"
   NIXPKGS_ALLOW_BROKEN: "1"
+  NIXPKGS_ALLOW_UNFREE: "1"
 jobs:
   check-outputs:
     runs-on: ubuntu-latest