diff --git a/Dockerfile b/Dockerfile
index ac0d70e..f9ff693 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ FROM amazonlinux:1
 
 ENV LANG en_US.UTF-8
 
-ENV ELIXIR_VERSION "1.7.3-otp-21"
+ENV ELIXIR_VERSION "1.8.1-otp-21"
 ENV ERLANG_VERSION "21.0"
 ENV ASDF_VERSION   "v0.5.1"
 ENV ASDF_DIR /opt/asdf