diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 0e1702031..1d1ccaed0 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -12,7 +12,6 @@ jobs:
       matrix:
         env:
           - { NPROC: 2 }
-          - { NPROC: 6 }
         platform: [ubuntu-latest, macos-latest]
     runs-on: ${{ matrix.platform }}
     env: ${{ matrix.env }}
@@ -51,7 +50,6 @@ jobs:
       matrix:
         env:
           - { NPROC: 2 }
-          - { NPROC: 6 }
     runs-on: windows-latest
     env: ${{ matrix.env }}