diff --git a/pyproject.toml b/pyproject.toml
index 57bbae1..7e812f1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "exact_cover"
-version = "1.4.0a1"
+version = "1.4.0"
 description = "Solve exact cover problems"
 readme = "README.md"
 authors = ["Moy Easwaran"]