diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index a4e250ad..8294d740 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -7,10 +7,11 @@ on:
   push:
     branches: [ "master" ]
   pull_request:
-    # branches: [ "master" ]
+    branches: [ "master" ]
 
 jobs:
   build:
+    if: ${{ false }} # Deactivate this workflow (temporary; requires a Nix installation)
 
     runs-on: ubuntu-latest