diff --git a/README.md b/README.md
index d3d612e41..bcef2583e 100644
--- a/README.md
+++ b/README.md
@@ -19,8 +19,8 @@ Essential dependencies:
 - CMake
 - Fairly modern C++ compiler
 	- Windows: **Latest MSVC**
-	- Linux: **g++ ≥ 14.1** or **clang++ ≥ 18.1**
-	- macOS: **open source clang++ ≥ 18.1** - e.g. `brew install llvm@18 ninja`
+	- Linux: **g++ ≥ 14.1** or **clang++ ≥ 19.1**
+	- macOS: **open source clang++ ≥ 19.1** - e.g. `brew install llvm@19 ninja`
 - Make or Ninja
 
 Extract the [latest pre-built dependencies](https://github.com/legacyclonk/deps/releases/latest) for your platform into a folder called `deps`.
diff --git a/autobuild/Mac.sh b/autobuild/Mac.sh
index 272042517..73c6e6c0a 100755
--- a/autobuild/Mac.sh
+++ b/autobuild/Mac.sh
@@ -2,7 +2,7 @@
 export HOMEBREW_NO_INSTALL_CLEANUP=1
 export HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK=1
 brew update
-brew install llvm@18 ninja
+brew install llvm@19 ninja
 echo "CMAKE_CONFIGURE_ARGS=-DCMAKE_OSX_DEPLOYMENT_TARGET=10.9 -DCMAKE_TOOLCHAIN_FILE=$PWD/autobuild/clang16_mac.cmake" >> $GITHUB_ENV
 
 cat autobuild/mac_any_cast.h >> src/C4InteractiveThread.h