diff --git a/Dockerfile.danger b/Dockerfile.danger
index a3ae1ed..8fb8384 100644
--- a/Dockerfile.danger
+++ b/Dockerfile.danger
@@ -6,7 +6,7 @@ ADD /scripts/ /scripts/
 RUN apt-get update \
     && apt-get install -y git \
     && /scripts/install-node 10.x 1.12.3-1 \
-    && yarn global add alex \
+    && yarn global add alex@7 \
     && yarn cache clean \
     && apt-get autoremove -yq \
     && apt-get clean -yqq \