diff --git a/gajim/gajim.py b/gajim/gajim.py
index 8c4707b0c..6e4b67b21 100644
--- a/gajim/gajim.py
+++ b/gajim/gajim.py
@@ -29,7 +29,7 @@ from distutils.version import LooseVersion as V
 # Install _() in namespace
 from gajim.common import i18n
 
-_MIN_NBXMPP_VER = "0.6.5"
+_MIN_NBXMPP_VER = "0.6.6"
 _MIN_GTK_VER = "3.22.0"
 
 
diff --git a/setup.py b/setup.py
index dba270d39..4d5be4006 100644
--- a/setup.py
+++ b/setup.py
@@ -285,7 +285,7 @@ setup(
     package_data={'gajim': package_data},
     data_files=data_files,
     install_requires=[
-        'nbxmpp>=0.6.5',
+        'nbxmpp>=0.6.6',
         'pyOpenSSL>=0.12',
     ],
     extras_require={