diff --git a/Dockerfile b/Dockerfile
index 24ddcac..d66b544 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,8 +5,8 @@ LABEL org.opencontainers.image.authors="bluefox@privacynerd.de"
 
 WORKDIR /cmatrix
 
-RUN apk update && \
-    apk add git autoconf automake alpine-sdk ncurses-dev ncurses-static && \
+RUN apk update --no-cache && \
+    apk add --no-cache git autoconf automake alpine-sdk ncurses-dev ncurses-static && \
     git clone https://git.privacynerd.de/Mirrors/cmatrix.git . && \
     autoreconf -i && \
     mkdir -p /usr/lib/kbd/consolefonts /usr/share/consolefonts && \
@@ -19,7 +19,7 @@ FROM alpine
 
 LABEL org.opencontainers.image.authors="bluefox@privacynerd.de"
 
-RUN apk update && apk add ncurses-terminfo-base
+RUN apk update --no-cache && apk add --no-cache ncurses-terminfo-base
 COPY --from=cmatrixbuildimage /cmatrix/cmatrix /cmatrix
 
 CMD ["./cmatrix"]