diff --git a/pyproject.toml b/pyproject.toml
index df1facc..802a4a2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,7 +25,7 @@ classifiers = [
 
 ]
 dependencies = [
-    "rougail ~= 1.1.0",
+    "rougail >= 1.1,<2",
 ]
 
 [project.urls]