diff --git a/requirements.txt b/requirements.txt
index fcec27e282..963bea2036 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ PrettyTable>=0.7.2
 Jinja2>=2.7.3
 IntelHex>=1.3
 project-generator>=0.9.7,<0.10.0
-project_generator_definitions>=0.2.26,<0.3.0
+project-generator-definitions>=0.2.26,<0.3.0
 junit-xml
 pyYAML
 requests