diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index d5fa48f9..00473505 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -18,7 +18,7 @@ jobs:
         php: [ 5.4 ]
         imagemagick: [
             7.1.0-13,
-            6.9.2-0
+            6.9.11
         ]
 
     steps:
@@ -88,6 +88,7 @@ jobs:
           7.0.8-4,
           7.0.1-0,
           git7,
+          6.9.11,
           6.9.2-0,
           6.8.7-0,
           6.7.8-0,