diff --git a/.buildkite/Dockerfile b/.buildkite/Dockerfile
index 2bf3886dc..9d73ae0b4 100644
--- a/.buildkite/Dockerfile
+++ b/.buildkite/Dockerfile
@@ -1,5 +1,5 @@
 ARG NODE_VERSION=${NODE_VERSION:-18}
-FROM node:$NODE_VERSION
+FROM node:latest@sha256:a2fea8b0b74b6e828caa6d83f4b2a0dcb2eb1ff90f30205c32f7bd36ddf976c4:$NODE_VERSION
 
 # Install required tools
 RUN apt-get clean -y && \
diff --git a/.buildkite/Dockerfile-make b/.buildkite/Dockerfile-make
index 3805eb0a2..bd52b9098 100644
--- a/.buildkite/Dockerfile-make
+++ b/.buildkite/Dockerfile-make
@@ -1,5 +1,5 @@
 ARG NODE_JS_VERSION=${NODE_JS_VERSION:-18}
-FROM node:${NODE_JS_VERSION}
+FROM node:latest@sha256:a2fea8b0b74b6e828caa6d83f4b2a0dcb2eb1ff90f30205c32f7bd36ddf976c4:${NODE_JS_VERSION}
 
 ARG BUILDER_UID=1000
 ARG BUILDER_GID=1000