diff --git a/tmval/constants.py b/tmval/constants.py
index 28938b1..b1dec97 100644
--- a/tmval/constants.py
+++ b/tmval/constants.py
@@ -3,7 +3,7 @@
 """
 
 # The build version is referenced by the setup file and documentation.
-BUILD_VERSION = '0.0.11'
+BUILD_VERSION = '0.0.12'
 
 # Formal patterns refer to canonical names of different types of growth rates and their aliases.
 FORMAL_PATTERNS = {