diff --git a/cluster/images/Dockerfile b/cluster/images/Dockerfile
index fe010027bbc2..455314b8febb 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:3.19.1
+FROM alpine:3.20.0
 
 ARG BINARY
 
diff --git a/cluster/images/buildx.Dockerfile b/cluster/images/buildx.Dockerfile
index 5f56a49569be..376107aa1b11 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:3.19.1
+FROM alpine:3.20.0
 
 ARG BINARY
 ARG TARGETPLATFORM