diff --git a/.docker/ruby/Dockerfile b/.docker/ruby/Dockerfile
index 5cba21a9..0b652131 100644
--- a/.docker/ruby/Dockerfile
+++ b/.docker/ruby/Dockerfile
@@ -4,11 +4,17 @@ USER root
 
 ARG UID=1000
 ARG GID=1000
+ARG NODE_MAJOR=16
 
 RUN curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
 RUN echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list
 
-RUN curl -sL https://deb.nodesource.com/setup_16.x | bash -
+RUN apt-get update -qq \
+    && apt-get install -y ca-certificates curl gnupg \
+    && mkdir -p /etc/apt/keyrings \
+    && curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg
+
+RUN echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$NODE_MAJOR.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list
 
 RUN apt-get update -qq \
     && apt-get install -y --no-install-recommends build-essential \