diff --git a/examples/app_cicd/cloud-build-builder/Dockerfile b/examples/app_cicd/cloud-build-builder/Dockerfile
index 695a7766..2d7b11d1 100644
--- a/examples/app_cicd/cloud-build-builder/Dockerfile
+++ b/examples/app_cicd/cloud-build-builder/Dockerfile
@@ -24,7 +24,7 @@ WORKDIR /go/src/app
 RUN make out/signer
 RUN cp out/signer /signer
 
-FROM alpine:3.18
+FROM alpine:3.19
 
 ### 1. Get Java via the package manager
 RUN apk update \
diff --git a/examples/private_cluster_cicd/cloud-build-builder/Dockerfile b/examples/private_cluster_cicd/cloud-build-builder/Dockerfile
index 695a7766..2d7b11d1 100644
--- a/examples/private_cluster_cicd/cloud-build-builder/Dockerfile
+++ b/examples/private_cluster_cicd/cloud-build-builder/Dockerfile
@@ -24,7 +24,7 @@ WORKDIR /go/src/app
 RUN make out/signer
 RUN cp out/signer /signer
 
-FROM alpine:3.18
+FROM alpine:3.19
 
 ### 1. Get Java via the package manager
 RUN apk update \