diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 4684b45f..281e7dda 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -19,14 +19,14 @@ repos:
   - id: end-of-file-fixer
 
 - repo: https://github.com/astral-sh/ruff-pre-commit
-  rev: "v0.8.3"
+  rev: "v0.8.6"
   hooks:
     - id: ruff
       args: ["--fix", "--show-fixes"]
     - id: ruff-format
 
 - repo: https://github.com/pre-commit/mirrors-mypy
-  rev: v1.13.0
+  rev: v1.14.1
   hooks:
   - id: mypy
     files: '^src/decaylanguage/(decay|dec|utils)/'
diff --git a/src/decaylanguage/dec/dec.py b/src/decaylanguage/dec/dec.py
index 2c547015..231cb3bc 100644
--- a/src/decaylanguage/dec/dec.py
+++ b/src/decaylanguage/dec/dec.py
@@ -214,7 +214,7 @@ def parse(self, include_ccdecays: bool = True) -> None:
             DecayModelAliasReplacement(model_alias_defs=dict_model_aliases).transform(
                 tree
             )
-            for tree in self._parsed_decays
+            for tree in self._parsed_decays  # type: ignore[union-attr]
         ]
 
         # Check whether certain decay model parameters are defined via