diff --git a/.github/workflows/update-flake.yml b/.github/workflows/update-flake.yml
index c790c9c69..ad22120ee 100644
--- a/.github/workflows/update-flake.yml
+++ b/.github/workflows/update-flake.yml
@@ -7,10 +7,12 @@ on:
   workflow_dispatch:
 
 permissions:
+  contents: write
   pull-requests: write
 
 jobs:
   update-flake:
+    if: github.repository == 'PrismLauncher/PrismLauncher'
     runs-on: ubuntu-latest
 
     steps: