diff --git a/neqsim/lib/neqsim-2.5.11.jar b/neqsim/lib/neqsim-2.5.12.jar
similarity index 97%
rename from neqsim/lib/neqsim-2.5.11.jar
rename to neqsim/lib/neqsim-2.5.12.jar
index 2bff8cd..f1c0d57 100644
Binary files a/neqsim/lib/neqsim-2.5.11.jar and b/neqsim/lib/neqsim-2.5.12.jar differ
diff --git a/setup.py b/setup.py
index defc514..94113ce 100644
--- a/setup.py
+++ b/setup.py
@@ -9,7 +9,7 @@
 
 setup(
     name="neqsim",
-    version="2.5.11",
+    version="2.5.12",
     author="Even Solbraa",
     author_email="esolbraa@gmail.com",
     description="NeqSim is a tool for thermodynamic and process calculations",