diff --git a/.github/workflows/linux-nix-check.yml b/.github/workflows/linux-nix-check.yml
index 147f7fc2dd..d774d21363 100644
--- a/.github/workflows/linux-nix-check.yml
+++ b/.github/workflows/linux-nix-check.yml
@@ -21,4 +21,4 @@ jobs:
         run: nix flake -L check
         env:
           NIX_CONFIG: |
-            cores = 6
+            cores = 4