diff --git a/csr/__init__.py b/csr/__init__.py
index a86b2a6..7c5d09a 100644
--- a/csr/__init__.py
+++ b/csr/__init__.py
@@ -2,7 +2,7 @@
 Compressed Sparse Row matrices for Python, with Numba API.
 """
 
-__version__ = "0.5.0"
+__version__ = "0.5.1"
 __all__ = [
     'CSR'
 ]