diff --git a/README b/README
index 2f25a1c..ea7b240 100644
--- a/README
+++ b/README
@@ -7,7 +7,7 @@ calculate-client needs the following library version installed, in order to run:
     Python >= 2.3
     python-ldap >= 2.0.0
     pyxml >= 0.8
-    calculate-lib >= 2.0.12
+    calculate-lib >= 2.0.16
 
 To install calculate-client , just execute the install script 'setup.py'.
 Example: