diff --git a/8.4/Dockerfile b/8.4/Dockerfile
index 13c85fd734..ebc4e287d9 100644
--- a/8.4/Dockerfile
+++ b/8.4/Dockerfile
@@ -40,7 +40,7 @@ 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 0.27.5
+ENV YARN_VERSION 1.0.1
 
 RUN set -ex \
   && for key in \
diff --git a/8.4/alpine/Dockerfile b/8.4/alpine/Dockerfile
index ffc205d85a..e5d66c6cf8 100644
--- a/8.4/alpine/Dockerfile
+++ b/8.4/alpine/Dockerfile
@@ -46,7 +46,7 @@ RUN addgroup -g 1000 node \
     && rm -Rf "node-v$NODE_VERSION" \
     && rm "node-v$NODE_VERSION.tar.xz" SHASUMS256.txt.asc SHASUMS256.txt
 
-ENV YARN_VERSION 0.27.5
+ENV YARN_VERSION 1.0.1
 
 RUN apk add --no-cache --virtual .build-deps-yarn curl gnupg tar \
   && for key in \
diff --git a/8.4/slim/Dockerfile b/8.4/slim/Dockerfile
index bcaa40b247..08777ca5d7 100644
--- a/8.4/slim/Dockerfile
+++ b/8.4/slim/Dockerfile
@@ -45,7 +45,7 @@ RUN buildDeps='xz-utils' \
     && apt-get purge -y --auto-remove $buildDeps \
     && ln -s /usr/local/bin/node /usr/local/bin/nodejs
 
-ENV YARN_VERSION 0.27.5
+ENV YARN_VERSION 1.0.1
 
 RUN set -ex \
   && for key in \
diff --git a/8.4/stretch/Dockerfile b/8.4/stretch/Dockerfile
index 4826e8df0d..f081a314aa 100644
--- a/8.4/stretch/Dockerfile
+++ b/8.4/stretch/Dockerfile
@@ -40,7 +40,7 @@ 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 0.27.5
+ENV YARN_VERSION 1.0.1
 
 RUN set -ex \
   && for key in \
diff --git a/8.4/wheezy/Dockerfile b/8.4/wheezy/Dockerfile
index 0e1fe45c93..2a2841e9db 100644
--- a/8.4/wheezy/Dockerfile
+++ b/8.4/wheezy/Dockerfile
@@ -37,7 +37,7 @@ 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 0.27.5
+ENV YARN_VERSION 1.0.1
 
 RUN set -ex \
   && for key in \