diff --git a/pyproject.toml b/pyproject.toml
index 76bb25f3..5ac1ad27 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -43,7 +43,7 @@ compare = [
     "mistune~=2.0",
     "panflute~=2.3",
 ]
-linkify = ["linkify-it-py~=1.0"]
+linkify = ["linkify-it-py>=1,<3"]
 plugins = ["mdit-py-plugins"]
 rtd = [
     "attrs",