diff --git a/.cloudbuild/graalvm-c.Dockerfile b/.cloudbuild/graalvm-c.Dockerfile
index 11686b3c..4a79f49c 100644
--- a/.cloudbuild/graalvm-c.Dockerfile
+++ b/.cloudbuild/graalvm-c.Dockerfile
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM ghcr.io/graalvm/graalvm-community:17.0.9-ol9-20231024
+FROM ghcr.io/graalvm/graalvm-community:21.0.1-ol9-20231024
 
 # use microdnf, see https://github.com/graalvm/container/issues/10
 RUN microdnf update -y oraclelinux-release-el9 && \