diff --git a/dev-requirements.txt b/dev-requirements.txt
index 331e38c..26d7aac 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,7 +1,7 @@
 # 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