diff --git a/Dockerfile.moth-devel b/Dockerfile.moth-devel
index ba6a4d8..f6364e2 100644
--- a/Dockerfile.moth-devel
+++ b/Dockerfile.moth-devel
@@ -1,7 +1,13 @@
-FROM alpine
+FROM alpine:3.7
 
-RUN apk --no-cache add python3 py3-pillow && \
-  pip3 install aiohttp
+RUN apk --no-cache add \
+    gcc \
+    musl-dev \
+    python3 \
+    python3-dev \
+    py3-pillow \
+  && \
+    pip3 install aiohttp
 
 COPY . /moth/
 COPY example-puzzles /puzzles/