update ci docker image

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ee00fb214ff2eb63255f6eb898edeb2a48731389..4fdba7d71aff176064ce8617e5207ff87bb8bf38 100644 (file)
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,4 @@
-image: elixir:1.9.4-alpine
+image: hexpm/elixir:1.12.3-erlang-24.0.6-alpine-3.14.0
 
 variables:
   MIX_ENV: "test"