diff --git a/pyproject.toml b/pyproject.toml
index 3d284df..40cf6ab 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -37,7 +37,7 @@ dependencies = [
   "openpyxl",
   "semver",
   "importlib-resources",
-  "pywin32"
+  "pywin32;sys_platform=='win32'"
 ]
 
 [project.optional-dependencies] # Optional