diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 62b1a7a9..3890f938 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -144,7 +144,7 @@ jobs:
         with:
           timeout_minutes: 2
           max_attempts: 3
-          retry_wait_seconds: 5
+          retry_wait_seconds: 8
           command: |
             sudo apt-get install -y -qq postfix qmail
             sudo service postfix stop