diff --git a/Dockerfile b/Dockerfile
index 24facf5..e526035 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ COPY . /src
 WORKDIR /src
 RUN npm install && node ./index.js
 
-FROM caddy:2.7.2
+FROM caddy:2.7.3
 
 COPY img /usr/share/caddy/img
 COPY css /usr/share/caddy/css