diff --git a/pyproject.toml b/pyproject.toml
index 17232e7e..ec4974bc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,7 +42,7 @@ dependencies = [
 
 [project.optional-dependencies]
 chgnet = [
-    "chgnet == 0.4.0",
+    "chgnet == 0.4.2",
 ]
 dpa3 = [
     "deepmd-kit == 3.1.0",
diff --git a/tests/test_utils.py b/tests/test_utils.py
index 97b81b00..fced0328 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -98,7 +98,7 @@ def test_output_structs(
     if arch == "mace_mp":
         model = "small"
     if arch == "chgnet":
-        model = "0.4.0"
+        model = "0.4.2"
     if arch == "sevennet":
         model = "SevenNet-0_11July2024"