diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index a832683..8ffdccd 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -2,7 +2,7 @@ exclude: '^docs/conf.py'
 
 repos:
 - repo: https://github.com/pre-commit/pre-commit-hooks
-  rev: v5.0.0
+  rev: v6.0.0
   hooks:
   - id: trailing-whitespace
   - id: check-added-large-files
@@ -19,7 +19,7 @@ repos:
 
 - repo: https://github.com/astral-sh/ruff-pre-commit
   # Ruff version.
-  rev: v0.8.2
+  rev: v0.15.15
   hooks:
     - id: ruff
       args: [--fix, --exit-non-zero-on-fix]
diff --git a/src/expressionatlas/converter.py b/src/expressionatlas/converter.py
index fcad96a..fe74319 100644
--- a/src/expressionatlas/converter.py
+++ b/src/expressionatlas/converter.py
@@ -134,7 +134,7 @@ def _get_auth_headers(self) -> dict[str, str]:
                     )
                     headers.update(dict(aws_request.headers))
             except ImportError:
-                logger.warning("botocore not installed. Cannot use IAM auth. " "Install with: pip install botocore")
+                logger.warning("botocore not installed. Cannot use IAM auth. Install with: pip install botocore")
             except Exception as e:
                 logger.warning(f"Failed to sign request: {e}")
         else:
@@ -205,7 +205,7 @@ def convert(
             if result.get("status") == "error":
                 raise ConverterError(result.get("detail", result.get("error", "Unknown error")))
 
-            logger.info(f"Conversion {'cache hit' if result.get('cache_hit') else 'complete'} " f"for {accession}")
+            logger.info(f"Conversion {'cache hit' if result.get('cache_hit') else 'complete'} for {accession}")
             return result
 
         except Exception as e: