diff --git a/.github/workflows/elixir.yml b/.github/workflows/elixir.yml
index 529bfde..c5df53c 100644
--- a/.github/workflows/elixir.yml
+++ b/.github/workflows/elixir.yml
@@ -29,7 +29,11 @@ jobs:
             otp: 27
             os: ubuntu-latest
             warnings_as_errors: true
-          - elixir: 1.18.0-rc.0-otp-27
+          - elixir: 1.18.0-otp-25
+            otp: 25
+            os: ubuntu-latest
+            warnings_as_errors: true
+          - elixir: 1.18.0-otp-27
             otp: 27
             os: ubuntu-latest
             warnings_as_errors: true
diff --git a/RELEASE.md b/RELEASE.md
index f7758e0..454ec2c 100644
--- a/RELEASE.md
+++ b/RELEASE.md
@@ -5,7 +5,9 @@
 
 - [Parsing HTML]
 
-## [EarmarkParser](https://hex.pm/packages/earmark_parser) 1.4.42 2024-12-11
+## [EarmarkParser](https://hex.pm/packages/earmark_parser) 1.4.42 2024-12-20
+
+- Added runners for 1.18 to the github CI workflows
 
 - Optimize Line Scanner by precompilation of the rgxen used, actually performance did not change
   but this was also a conceptionally cleaner refactoring.