diff --git a/lib/spack/spack/__init__.py b/lib/spack/spack/__init__.py
index 0074409661..953ec89f9f 100644
--- a/lib/spack/spack/__init__.py
+++ b/lib/spack/spack/__init__.py
@@ -5,7 +5,7 @@
 
 
 #: major, minor, patch version for Spack, in a tuple
-spack_version_info = (0, 13, 3)
+spack_version_info = (0, 13, 4)
 
 #: String containing Spack version joined with .'s
 spack_version = '.'.join(str(v) for v in spack_version_info)