diff --git a/pyproject.toml b/pyproject.toml
index e4d3baf9..a40d726e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,7 +25,11 @@ classifiers = [
     "Programming Language :: Python :: 3.13",
 ]
 requires-python = ">=3.7.0"
-dependencies = ["lark>=1,<2"]
+dependencies = [
+    "lark>=1,<2",
+    "regex>=2024.4.16"
+]
+
 dynamic = ["version"]
 
 [project.readme]