diff --git a/Dockerfile.moth-devel b/Dockerfile.moth-devel
index d1ac9e5..fef3b43 100644
--- a/Dockerfile.moth-devel
+++ b/Dockerfile.moth-devel
@@ -1,4 +1,4 @@
-FROM python:3.7.2-alpine3.9
+FROM python:3.7.2-alpine3.8
 
 RUN apk --no-cache add \
       gcc \