diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 5e9bd33..84bee6d 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,6 +1,13 @@
 Change Log
 ----------
 
+1.2.1 (2016-11-02)
+++++++++++++++++++
+
+**Bugfix**
+
+- Fixed a bug where parsing the values "nan", "inf" or "-inf" would lead to a float value, when handling XML values. While this could potentially be correct, it's safer to assume that these values are in fact string values
+
 1.2.0 (2016-04-19)
 ++++++++++++++++++
 
diff --git a/altapay/utils.py b/altapay/utils.py
index cd5bd27..26c5986 100644
--- a/altapay/utils.py
+++ b/altapay/utils.py
@@ -60,6 +60,8 @@ def handle_xml_value(value):
         return False
     elif value.isdigit():
         return int(value)
+    elif value.lower() in ('nan', 'inf', '-inf'):
+        return value
 
     try:
         return float(value)