diff --git a/pyproject.toml b/pyproject.toml
index aa3bb51d6b..1ff1047060 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -90,7 +90,7 @@ strict-openff = [
 # ALWAYS REMEMBER to update `.github/workflows/testing.yml` to reflect the current set of
 # forcefield dependency groups.
 strict-forcefields-generic = [
-    "calorine==3.4; python_version >= '3.12'",
+    "calorine==3.5; python_version >= '3.12'",
     "calorine==3.1; python_version < '3.12'",
     "chgnet==0.4.2",
     "quippy-ase==0.10.3",