diff --git a/master/requirements.txt b/master/requirements.txt
index 29d879e..32ee866 100644
--- a/master/requirements.txt
+++ b/master/requirements.txt
@@ -1,3 +1,3 @@
 buildbot[bundle,tls]==2.7.0
-python-ldap==3.2.0
+python-ldap==3.4.0
 treq==20.3.0