diff --git a/TOOLS/requirements.txt b/TOOLS/requirements.txt
index 0012df70e..60de10f2f 100644
--- a/TOOLS/requirements.txt
+++ b/TOOLS/requirements.txt
@@ -32,7 +32,7 @@ pydot==1.0.2
 pyparsing==1.5.7
 pyserial==2.7
 python-dateutil==1.5
-python-ldap==2.4.15
+python-ldap==3.4.0
 python-openid==2.2.5
 python-stdnum==0.9
 pytz==2014.4