diff --git a/dev-requirements.txt b/dev-requirements.txt
index 7217218..88d94b7 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -4,7 +4,7 @@ epydoc>=3.0,<3.1
 # For newer tasks like building Sphinx docs.
 # NOTE: Requires Python >=2.6
 invoke>=0.7.0
-invocations>=0.4.4
+invocations>=0.5.0
 sphinx>=1.1.3
 alabaster>=0.3.0
 releases>=0.5.1