diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 9a0dfc5b..98b06e68 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -25,6 +25,7 @@ jobs:
     runs-on: ${{ matrix.platform }}
     strategy:
       fail-fast: false
+      max-parallel: 4
       matrix:
         platform: [ubuntu-latest, windows-latest, macos-latest, macos-11, ubuntu-18.04, windows-2022, windows-2016]
 
@@ -64,6 +65,7 @@ jobs:
     runs-on: ${{ matrix.platform }}
     strategy:
       fail-fast: false
+      max-parallel: 4
       matrix:
         platform: [ubuntu-latest, windows-latest, macos-latest, macos-11, ubuntu-18.04, windows-2022, windows-2016]
     steps:
@@ -119,6 +121,7 @@ jobs:
     runs-on: ${{ matrix.platform }}
     strategy:
       fail-fast: false
+      max-parallel: 4
       matrix:
         platform: [ubuntu-latest, windows-latest, macos-latest, macos-11, ubuntu-18.04, windows-2022, windows-2016]
 
@@ -158,6 +161,7 @@ jobs:
     runs-on: ${{ matrix.platform }}
     strategy:
       fail-fast: false
+      max-parallel: 4
       matrix:
         platform: [ubuntu-latest, windows-latest, macos-latest, macos-11, ubuntu-18.04, windows-2022, windows-2016]
 
@@ -197,6 +201,7 @@ jobs:
     runs-on: ${{ matrix.platform }}
     strategy:
       fail-fast: false
+      max-parallel: 4
       matrix:
         platform: [ubuntu-latest, windows-latest, macos-latest, macos-11, ubuntu-18.04, windows-2022, windows-2016]