diff --git a/pyproject.toml b/pyproject.toml
index 5824e0356f..91551c1186 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ classifiers = [
 ]
 requires-python = ">=3.8"
 dependencies = [
-    "anyio>=3.1.0,<4",
+    "anyio>=3.1.0",
     "argon2-cffi",
     "jinja2",
     "jupyter_client>=7.4.4",