diff --git a/cluster/images/Dockerfile b/cluster/images/Dockerfile
index d8fa12445ac9..b864d5215129 100644
--- a/cluster/images/Dockerfile
+++ b/cluster/images/Dockerfile
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM alpine:3.20.2
+FROM alpine:3.20.3
 
 ARG BINARY
 
diff --git a/cluster/images/buildx.Dockerfile b/cluster/images/buildx.Dockerfile
index f3fb70b054e9..937661a5be58 100644
--- a/cluster/images/buildx.Dockerfile
+++ b/cluster/images/buildx.Dockerfile
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM alpine:3.20.2
+FROM alpine:3.20.3
 
 ARG BINARY
 ARG TARGETPLATFORM