diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index bd98004..b4dedf8 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -20,7 +20,7 @@ jobs:
           - path: postgres
             version: 14
           - path: debian
-            version: 11.5
+            version: 11.6
           - path: ubuntu
             version: 20.04
           - path: buildkite-agent
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 456de1e..5c47698 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -20,7 +20,7 @@ jobs:
           - path: postgres
             version: 14
           - path: debian
-            version: 11.5
+            version: 11.6
           - path: ubuntu
             version: 20.04
           - path: buildkite-agent
diff --git a/images/debian/11.5/Dockerfile b/images/debian/11.6/Dockerfile
similarity index 99%
rename from images/debian/11.5/Dockerfile
rename to images/debian/11.6/Dockerfile
index 3e29e89..42ba430 100644
--- a/images/debian/11.5/Dockerfile
+++ b/images/debian/11.6/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:11.5
+FROM debian:11.6
 ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update && apt-get install -y \
     curl \