diff --git a/requirements.txt b/requirements.txt
index 271d53570..d9e1bceea 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 requests>=1.0
 ruamel.yaml==0.13.7
-rdflib==4.2.1
+rdflib==4.2.2
 rdflib-jsonld==0.4.0
 shellescape==3.4.1
 schema-salad>=2.4.20170308171942,<3