diff --git a/Dockerfile b/Dockerfile
index f112b26..c5e2b70 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -70,7 +70,7 @@ FROM build AS stress-test
 WORKDIR /opt/vfps-stress
 # https://github.com/hadolint/hadolint/pull/815 isn't yet in mega-linter
 # hadolint ignore=DL3022
-COPY --from=docker.io/bitnami/kubectl:1.28.2@sha256:52a1c97ff9f4e82bce5f15cca73f9f454b70910afbf241ae0ecb5d60956fec05 /opt/bitnami/kubectl/bin/kubectl /usr/bin/kubectl
+COPY --from=docker.io/bitnami/kubectl:1.28.2@sha256:0b28a0ae15893822f211bb8501d192c7b52d1920c32e4b43734aa6d94d51477f /opt/bitnami/kubectl/bin/kubectl /usr/bin/kubectl
 
 COPY tests/chaos/chaos.yaml /tmp/
 COPY --from=build-stress-test /build/publish .
diff --git a/grpc-utils.Dockerfile b/grpc-utils.Dockerfile
index 526b286..fa9de55 100644
--- a/grpc-utils.Dockerfile
+++ b/grpc-utils.Dockerfile
@@ -1,5 +1,5 @@
 # syntax=docker/dockerfile:1.4
-FROM docker.io/library/ubuntu:22.04@sha256:9b8dec3bf938bc80fbe758d856e96fdfab5f56c39d44b0cff351e847bb1b01ea
+FROM docker.io/library/ubuntu:22.10@sha256:e322f4808315c387868a9135beeb11435b5b83130a8599fd7d0014452c34f489
 SHELL ["/bin/bash", "-eo", "pipefail", "-c"]
 
 ENV GRPCURL_URL=https://github.com/fullstorydev/grpcurl/releases/download/v1.8.8/grpcurl_1.8.8_linux_x86_64.tar.gz \