diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7acb687..ae1d799 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 ## [Unreleased]
 
+## [18.1.4] - 2024-05-09
+### Changed
+- Upgrade to LLVM 18.1.5 minimum
+
 ## [18.1.4] - 2024-04-22
 ### Changed
 - Upgrade to LLVM 18.1.4 minimum
diff --git a/lib/llvm/version.rb b/lib/llvm/version.rb
index aac8586..c5bd4b4 100644
--- a/lib/llvm/version.rb
+++ b/lib/llvm/version.rb
@@ -2,6 +2,6 @@
 
 module LLVM
   LLVM_VERSION = "18"
-  LLVM_REQUIRED_VERSION = "18.1.4"
-  RUBY_LLVM_VERSION = "18.1.4"
+  LLVM_REQUIRED_VERSION = "18.1.5"
+  RUBY_LLVM_VERSION = "18.1.5"
 end