diff --git a/nginx-php/7.1/Dockerfile b/nginx-php/7.1/Dockerfile
index 180a500..4efbfd5 100644
--- a/nginx-php/7.1/Dockerfile
+++ b/nginx-php/7.1/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.7
+FROM alpine:3.6
 
 ARG BUILD_CORES