diff --git a/.versions.json b/.versions.json
index 325fbd0..e4635c5 100644
--- a/.versions.json
+++ b/.versions.json
@@ -1,5 +1,5 @@
 {
-  "DEBIAN_VERSION": "buster-20231009-slim",
-  "IMAGE_RELEASE_VERSION": "3",
+  "DEBIAN_VERSION": "buster-20231030-slim",
+  "IMAGE_RELEASE_VERSION": "4",
   "PGBOUNCER_VERSION": "1.21.0"
 }
diff --git a/Dockerfile b/Dockerfile
index f054953..0a3eec6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-ARG DEBIAN_VERSION=buster-20231009-slim
+ARG DEBIAN_VERSION=buster-20231030-slim
 ARG PGBOUNCER_VERSION=1.21.0
 
 FROM debian:${DEBIAN_VERSION} AS build
@@ -43,7 +43,7 @@ ARG TARGETARCH
 LABEL name="PgBouncer Container Images" \
       vendor="The CloudNativePG Contributors" \
       version="1.21.0" \
-      release="3" \
+      release="4" \
       summary="Container images for PgBouncer (connection pooler for PostgreSQL)." \
       description="This Docker image contains PgBouncer based on Debian ${DEBIAN_VERSION}."