diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 58dc915..4f037de 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -14,12 +14,12 @@ repos:
   # python code formatting/linting
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
-    rev: "v0.14.4"
+    rev: "v0.15.12"
     hooks:
       - id: ruff
         args: [--fix]
   - repo: https://github.com/psf/black-pre-commit-mirror
-    rev: 25.11.0
+    rev: 26.3.1
     hooks:
       - id: black
         args: [--line-length, "100"]
diff --git a/metnet/layers/MBConv.py b/metnet/layers/MBConv.py
index 32712d8..4259cea 100644
--- a/metnet/layers/MBConv.py
+++ b/metnet/layers/MBConv.py
@@ -65,10 +65,8 @@ def __init__(
 
         if self.downscale:
             # TODO: Check if downscaling is needed at all. May impact layer normalisation.
-            raise NotImplementedError(
-                "Downscaling in MBConv hasn't been implemented as it \
-                isnt used in Metnet3"
-            )
+            raise NotImplementedError("Downscaling in MBConv hasn't been implemented as it \
+                isnt used in Metnet3")
 
         self.main_branch = nn.Sequential(
             self.pre_norm,  # Pre Normalize over the last three dimensions (i.e. the channel and spatial dimensions) # noqa
diff --git a/tests/test_merge_gaussian.py b/tests/test_merge_gaussian.py
index d1401a5..cf59109 100644
--- a/tests/test_merge_gaussian.py
+++ b/tests/test_merge_gaussian.py
@@ -8,7 +8,6 @@
     get_band_data,
 )
 
-
 # ---------------------------------------------------------
 # Helpers: create synthetic lat/lon grids
 # ---------------------------------------------------------