diff --git a/.github/workflows/deploy-image.yaml b/.github/workflows/deploy-image.yaml
index 3840119..accc1a2 100644
--- a/.github/workflows/deploy-image.yaml
+++ b/.github/workflows/deploy-image.yaml
@@ -32,7 +32,7 @@ jobs:
           - 16
         postgisMajorVersion:
           - 3
-        matrix.postgisMinorRelease:
+        postgisMinorRelease:
           - 4
         include:
           - distro: debian