diff --git a/ci/Dockerfile b/ci/Dockerfile
index ec93337..ba54756 100644
--- a/ci/Dockerfile
+++ b/ci/Dockerfile
@@ -1,7 +1,7 @@
 FROM rust:1.73-alpine3.18
 
 #install build tooling
-RUN rustup component add rustfmt
+RUN apk add musl-dev && rustup component add rustfmt
 
 # install gitea act_runner dependencies
 RUN apk add nodejs git