diff --git a/src/lib.rs b/src/lib.rs
index 119f377..7188454 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -256,6 +256,7 @@ impl ImportLibraryGenerator {
                 Some((3, 10)) => ("python310.def", include_str!("python310.def")),
                 Some((3, 11)) => ("python311.def", include_str!("python311.def")),
                 Some((3, 12)) => ("python312.def", include_str!("python312.def")),
+                Some((3, 13)) => ("python313.def", include_str!("python313.def")),
                 _ => return Err(Error::new(ErrorKind::Other, "Unsupported Python version")),
             },
             PythonImplementation::PyPy => match self.version {