diff --git a/requirements.txt b/requirements.txt
index 7e0d24f7..8f95f258 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 SPARQLWrapper
-case-utils >=0.17.0,<0.18.0
+case-utils >=0.18.0,<0.19.0
 pytest