diff --git a/Dockerfile b/Dockerfile
index 5f62d87..d0beec4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,9 +2,9 @@ FROM alpine:latest as builder
 
 WORKDIR /work
 RUN \
-    apk update && \
-    apk add curl && \
-    curl  -L -o master.zip https://github.com/getkirby/plainkit/archive/master.zip  && \
+    apk update     && \
+    apk add curl   && \
+    curl --retry 3 -L -o master.zip https://github.com/getkirby/plainkit/archive/master.zip  && \
     unzip -qq master.zip    && \
     cd plainkit-master  && \
     rm -rf README.md .editorconfig .gitignore .htaccess composer.json