diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 7db921b..f7db156 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -26,8 +26,7 @@ repos:
   hooks:
     - id: black
 
-- repo: https://github.com/PyCQA/flake8
-  rev: 6.0.0
+- repo: https://github.com/charliermarsh/ruff-pre-commit
+  rev: 'v0.0.246'
   hooks:
-    - id: flake8
-      types: [file, python]
+    - id: ruff
diff --git a/pyproject.toml b/pyproject.toml
index dafa9da..431e6de 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -66,13 +66,13 @@ write_to = "src/sigal/version.py"
 line-length = 88
 target-version = ['py38']
 
-[tool.flake8]
-max-line-length = "88"
-ignore = "E203,W503,E731"
-
-[tool.distutils.isort]
+[tool.isort]
 profile = "black"
 
+[tool.ruff]
+select = ["E", "F"]
+ignore = ["E731"]
+
 [tool.coverage.run]
 source = ["sigal"]
 omit = [
diff --git a/src/sigal/plugins/compress_assets.py b/src/sigal/plugins/compress_assets.py
index 226cace..6c2b365 100644
--- a/src/sigal/plugins/compress_assets.py
+++ b/src/sigal/plugins/compress_assets.py
@@ -80,7 +80,7 @@ class BaseCompressor:
         Otherwise, it returns False.
 
         """
-        if not os.path.splitext(filename)[1][1:] in self.suffixes_to_compress:
+        if os.path.splitext(filename)[1][1:] not in self.suffixes_to_compress:
             return False
 
         file_stats = None