diff --git a/pyproject.toml b/pyproject.toml
index 30fe56674..c13f9f685 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,7 +23,7 @@ dependencies = [
   "mkdocs-same-dir==0.1.3",
   "pre-commit==4.1",
   "pymdown-extensions==10.14.3",
-  "ruff==0.9.9",
+  "ruff==0.12.12",
 ]
 
 [tool.ruff]
diff --git a/requirements.txt b/requirements.txt
index b9a46e1fc..c5ef4fde9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ mkdocs-exclude == 1.0.2
 markdown-exec[ansi] == 1.10.3
 
 # Developer stuff
-ruff == 0.11.6
+ruff == 0.12.12
 codespell == 2.4.1
 pre-commit == 4.2.0
 
diff --git a/s7_deployment/exercise_files/onnx_simple.py b/s7_deployment/exercise_files/onnx_simple.py
index 79188870d..dd2eef852 100644
--- a/s7_deployment/exercise_files/onnx_simple.py
+++ b/s7_deployment/exercise_files/onnx_simple.py
@@ -27,7 +27,7 @@
 graph = make_graph([node1, node2], "lr", [X, A, B], [Y])  # nodes  # a name  # inputs  # outputs
 
 # onnx graph
-# there is no metata in this case.
+# there is no metadata in this case.
 
 onnx_model = make_model(graph)