diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 22af688..d030f08 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,7 +11,6 @@ jobs:
     strategy:
       matrix:
         os-image:
-          - debian-9-x64
           - debian-10-x64
           - debian-11-x64
           - ubuntu-18-04-x64