diff --git a/src/emailservice/Dockerfile b/src/emailservice/Dockerfile
index 3d649a5..ff88c76 100644
--- a/src/emailservice/Dockerfile
+++ b/src/emailservice/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3-slim as base
+FROM python:3.7-slim as base
 
 FROM base as builder