diff --git a/Dockerfile b/Dockerfile
index f9ff693..995ac1d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,8 +2,8 @@ FROM amazonlinux:1
 
 ENV LANG en_US.UTF-8
 
-ENV ELIXIR_VERSION "1.8.1-otp-21"
-ENV ERLANG_VERSION "21.0"
+ENV ELIXIR_VERSION "1.9.0-otp-22"
+ENV ERLANG_VERSION "22.0"
 ENV ASDF_VERSION   "v0.5.1"
 ENV ASDF_DIR /opt/asdf
 ENV PATH "/opt/asdf/bin:/opt/asdf/shims:$PATH"