diff --git a/.tool-versions b/.tool-versions
index 8a47b1c..87b3619 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,4 +1,4 @@
 elixir 1.11.3
 python 2.7.14
 nodejs 10.16.0
-erlang 22.3.3
+erlang 23.2.3