diff --git a/tasks/py.requirements.txt b/tasks/py.requirements.txt
index 9a8132d..573d4da 100644
--- a/tasks/py.requirements.txt
+++ b/tasks/py.requirements.txt
@@ -8,7 +8,7 @@
 #  * http://www.pip-installer.org/
 # ============================================================================
 
-invoke==1.4.1
+invoke==2.1.2
 pycmd
 six==1.16.0