diff --git a/Dockerfile b/Dockerfile
index 92f6879..d588e0d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,7 +16,7 @@ RUN pip install pip-tools
 RUN groupadd --gid 1000 node \
   && useradd --uid 1000 --gid node --shell /bin/bash --create-home node
 
-ENV NODE_VERSION 12.13.0
+ENV NODE_VERSION 12.14.1
 RUN ARCH= && dpkgArch="$(dpkg --print-architecture)" \
   && case "${dpkgArch##*-}" in \
     amd64) ARCH='x64';; \
@@ -54,7 +54,7 @@ RUN ARCH= && dpkgArch="$(dpkg --print-architecture)" \
   && rm "node-v$NODE_VERSION-linux-$ARCH.tar.xz" SHASUMS256.txt.asc SHASUMS256.txt \
   && ln -s /usr/local/bin/node /usr/local/bin/nodejs
 
-ENV YARN_VERSION 1.19.1
+ENV YARN_VERSION 1.21.1
 RUN set -ex \
   && for key in \
     6A010C5166006599AA17F08146C2130DFD2497F5 \