diff --git a/pyproject.toml b/pyproject.toml
index 9cad5ff..896996f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -66,7 +66,7 @@ build-dir = "build"
 [tool.scikit-build.cmake]
 build-type = "Release"
 args = ["-G", "Ninja"]
-define = { CMAKE_OSX_DEPLOYMENT_TARGET = "14.0" }
+define = { CMAKE_OSX_DEPLOYMENT_TARGET = "15.0" }
 version = ">=3.15"
 source-dir = "."