diff --git a/tools/dockerfile/distribtest/python_dev_alpine3.7_x64/Dockerfile b/tools/dockerfile/distribtest/python_dev_alpine3.7_x64/Dockerfile
index 24e3a4b2eb75a..60eab653ce282 100644
--- a/tools/dockerfile/distribtest/python_dev_alpine3.7_x64/Dockerfile
+++ b/tools/dockerfile/distribtest/python_dev_alpine3.7_x64/Dockerfile
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM alpine:3.7
+FROM alpine:3.21.0
 
 RUN apk add --update build-base python python-dev py-pip