diff --git a/Dockerfile b/Dockerfile
index f696a98..82a81ee 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM python:alpine
 
-ENV REVIEWDOG_VERSION=v0.19.0
+ENV REVIEWDOG_VERSION=v0.20.1
 
 RUN wget -O - -q https://raw.githubusercontent.com/reviewdog/reviewdog/master/install.sh| sh -s -- -b /usr/local/bin/ ${REVIEWDOG_VERSION}
 RUN apk --no-cache add git