diff --git a/images/mkdocs/Dockerfile b/images/mkdocs/Dockerfile
index 23f163b8c9ee5..c193c9bbaa9ed 100644
--- a/images/mkdocs/Dockerfile
+++ b/images/mkdocs/Dockerfile
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM alpine:3.16
+FROM alpine:3.21.3
 
 RUN apk add --no-cache \
   bash \