diff --git a/Dockerfile b/Dockerfile
index 68b3ca4..8d93379 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ ARG JAVA_VERSION
 FROM node:$BASE_IMAGE_TAG
 
 RUN apt-get update && \
-    apt-get install -y chromium firefox-esr xvfb libxi6 libgbm1 libgconf-2-4 openjdk-${JAVA_VERSION}-jre && \
+    apt-get install -y chromium firefox-esr xvfb libxi6 libgbm1 libgconf-2-4 openjdk-"${JAVA_VERSION}"-jre && \
     rm -rf /var/lib/apt/lists/* /var/cache/apt/* && \
     ln -s /usr/bin/chromium /usr/bin/google-chrome