diff --git a/requirements.txt b/requirements.txt
index ef2cfc65..b9792daf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,4 +7,4 @@ cliff!=1.16.0,!=1.17.0,>=1.15.0 # Apache-2.0
 PyYAML>=3.1.0 # MIT
 python-dateutil>=2.4.2 # BSD
 six>=1.9.0 # MIT
-tosca-parser>=0.4.0 # Apache-2.0
+tosca-parser>=0.5.0 # Apache-2.0