diff --git a/e2e-test-server/Dockerfile b/e2e-test-server/Dockerfile
index 62f43d436..37b2d7edb 100644
--- a/e2e-test-server/Dockerfile
+++ b/e2e-test-server/Dockerfile
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM golang:1.24.2 as builder
+FROM golang:1.25.5 as builder
 
 WORKDIR /workspace/e2e-test-server/