diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 5be38a49d..458cee037 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -30,14 +30,14 @@ repos:
       - id: check-added-large-files
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: 'v0.14.6'
+    rev: 'v0.14.7'
     hooks:
       - id: ruff
         args: ["--fix", "--show-fixes"]
       - id: ruff-format
 
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.18.2
+    rev: v1.19.0
     hooks:
       - id: mypy
         additional_dependencies:
diff --git a/diracx-core/src/diracx/core/settings.py b/diracx-core/src/diracx/core/settings.py
index ef11459f8..2568c13bc 100644
--- a/diracx-core/src/diracx/core/settings.py
+++ b/diracx-core/src/diracx/core/settings.py
@@ -175,7 +175,7 @@ class SandboxStoreSettings(ServiceSettingsBase):
     model_config = SettingsConfigDict(env_prefix="DIRACX_SANDBOX_STORE_")
 
     bucket_name: str
-    s3_client_kwargs: dict[str, str]
+    s3_client_kwargs: dict[str, Any]
     auto_create_bucket: bool = False
     url_validity_seconds: int = 5 * 60
     se_name: str = "SandboxSE"