diff --git a/Cargo.toml b/Cargo.toml
index 85e12ad..d233ac4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "personnummer"
 description = "Validate Swedish personal identity numbers"
-version = "3.1.0"
+version = "3.1.1"
 authors = ["Simon Sawert <simon@sawert.se>"]
 edition = "2021"
 license = "MIT"