diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 3647054a..27b642b6 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -1,3 +1,6 @@
+2.1.1
+- Use of triple point of water in GetSatVapPres (#36).
+
 2.1.0
 - Add functions to convert between specific humidity and humidity ratio (aka mixing ratio).
 - Add functions to convert to dry bulb temperature or humidity ratio from enthalpy.
diff --git a/src/c/psychrolib.c b/src/c/psychrolib.c
index 9230135e..2827e927 100644
--- a/src/c/psychrolib.c
+++ b/src/c/psychrolib.c
@@ -1,5 +1,5 @@
 /**
- * PsychroLib (version 2.1.0) (https://github.com/psychrometrics/psychrolib)
+ * PsychroLib (version 2.1.1) (https://github.com/psychrometrics/psychrolib)
  * Copyright (c) 2018 D. Thevenard and D. Meyer for the current library implementation
  * Copyright (c) 2017 ASHRAE Handbook — Fundamentals for ASHRAE equations and coefficients
  * Licensed under the MIT License.
diff --git a/src/c/psychrolib.h b/src/c/psychrolib.h
index c3da052a..d58b8c60 100644
--- a/src/c/psychrolib.h
+++ b/src/c/psychrolib.h
@@ -1,4 +1,4 @@
-// PsychroLib(version 2.1.0) (https:// github.com/psychrometrics/psychrolib)
+// PsychroLib(version 2.1.1) (https:// github.com/psychrometrics/psychrolib)
 // Copyright(c) 2018 D.Thevenard and D.Meyer. Licensed under the MIT License.
 
 /******************************************************************************************************
diff --git a/src/fortran/psychrolib.f90 b/src/fortran/psychrolib.f90
index e5824fd5..51dd7994 100644
--- a/src/fortran/psychrolib.f90
+++ b/src/fortran/psychrolib.f90
@@ -1,4 +1,4 @@
-! PsychroLib version 2.1.0 (https://github.com/psychrometrics/psychrolib)
+! PsychroLib version 2.1.1 (https://github.com/psychrometrics/psychrolib)
 ! Copyright (c) 2018 D. Thevenard and D. Meyer for the current library implementation
 ! Copyright (c) 2017 ASHRAE Handbook — Fundamentals for ASHRAE equations and coefficients
 ! Licensed under the MIT License.
diff --git a/src/js/psychrolib.js b/src/js/psychrolib.js
index 81e6f0b1..14bed5fa 100644
--- a/src/js/psychrolib.js
+++ b/src/js/psychrolib.js
@@ -1,5 +1,5 @@
 /**
- * PsychroLib (version 2.1.0) (https://github.com/psychrometrics/psychrolib)
+ * PsychroLib (version 2.1.1) (https://github.com/psychrometrics/psychrolib)
  * Copyright (c) 2018 D. Thevenard and D. Meyer for the current library implementation
  * Copyright (c) 2017 ASHRAE Handbook — Fundamentals for ASHRAE equations and coefficients
  * Licensed under the MIT License.
diff --git a/src/python/psychrolib.py b/src/python/psychrolib.py
index 2beb8898..9640ff26 100644
--- a/src/python/psychrolib.py
+++ b/src/python/psychrolib.py
@@ -1,4 +1,4 @@
-# PsychroLib (version 2.1.0) (https://github.com/psychrometrics/psychrolib)
+# PsychroLib (version 2.1.1) (https://github.com/psychrometrics/psychrolib)
 # Copyright (c) 2018 D. Thevenard and D. Meyer for the current library implementation
 # Copyright (c) 2017 ASHRAE Handbook — Fundamentals for ASHRAE equations and coefficients
 # Licensed under the MIT License.
diff --git a/src/python/setup.py b/src/python/setup.py
index 18eb507c..86b2c443 100644
--- a/src/python/setup.py
+++ b/src/python/setup.py
@@ -3,7 +3,7 @@
 from distutils.core import setup
 
 setup(name='PsychroLib',
-      version='2.1.0',
+      version='2.1.1',
       maintainer = 'The PsychroLib Developers',
       description='Library of psychrometric functions to calculate thermodynamic properties of air',
       author='D. Thevenard and D. Meyer',
diff --git a/src/vba/psychrolib.bas b/src/vba/psychrolib.bas
index bf075608..41607366 100644
--- a/src/vba/psychrolib.bas
+++ b/src/vba/psychrolib.bas
@@ -1,4 +1,4 @@
-' PsychroLib (version 2.1.0) (https://github.com/psychrometrics/psychrolib)
+' PsychroLib (version 2.1.1) (https://github.com/psychrometrics/psychrolib)
 ' Copyright (c) 2018 D. Thevenard and D. Meyer for the current library implementation
 ' Copyright (c) 2017 ASHRAE Handbook — Fundamentals for ASHRAE equations and coefficients
 ' Licensed under the MIT License.
diff --git a/tests/vba/test_psychrolib_ip.xlsm b/tests/vba/test_psychrolib_ip.xlsm
index 2dcb24f4..546f00e0 100755
Binary files a/tests/vba/test_psychrolib_ip.xlsm and b/tests/vba/test_psychrolib_ip.xlsm differ
diff --git a/tests/vba/test_psychrolib_si.xlsm b/tests/vba/test_psychrolib_si.xlsm
index e279747c..d21a324f 100755
Binary files a/tests/vba/test_psychrolib_si.xlsm and b/tests/vba/test_psychrolib_si.xlsm differ