diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 4a50f44ff..065872d74 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -14,6 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
+        max-parallel: 2
         profile: [ mainnet, testnet, mainnet-silo, testnet-silo ]
     steps:
       - name: Potential broken submodules fix
@@ -62,6 +63,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
+        max-parallel: 1
         profile: [ mainnet, testnet ]
     steps:
       - name: Potential broken submodules fix