diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index e19cb48..abfed54 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -118,5 +118,4 @@ jobs:
             otp: 26
           - elixir: 1.17
             otp: 27
-          - elixir: 1.18
-            otp: 27
+
diff --git a/.tool-versions b/.tool-versions
index fe6dc8b..fe29d91 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,2 +1,2 @@
-elixir 1.18
-erlang 27.2
+elixir 1.16
+erlang 26.0