diff --git a/python/ruff-ecosystem/pyproject.toml b/python/ruff-ecosystem/pyproject.toml
index 2a03fce4ce..1434f02869 100644
--- a/python/ruff-ecosystem/pyproject.toml
+++ b/python/ruff-ecosystem/pyproject.toml
@@ -6,7 +6,7 @@ build-backend = "uv_build"
 name = "ruff-ecosystem"
 version = "0.0.0"
 requires-python = ">=3.11"
-dependencies = ["unidiff==1.0.0", "tomli_w==1.2.0", "tomli==2.4.1"]
+dependencies = ["unidiff==1.0.1", "tomli_w==1.2.0", "tomli==2.4.1"]
 
 [project.scripts]
 ruff-ecosystem = "ruff_ecosystem.cli:entrypoint"
diff --git a/python/ruff-ecosystem/uv.lock b/python/ruff-ecosystem/uv.lock
index 182e3a4a8d..4674d71a39 100644
--- a/python/ruff-ecosystem/uv.lock
+++ b/python/ruff-ecosystem/uv.lock
@@ -19,7 +19,7 @@ dependencies = [
 requires-dist = [
     { name = "tomli", specifier = "==2.4.1" },
     { name = "tomli-w", specifier = "==1.2.0" },
-    { name = "unidiff", specifier = "==1.0.0" },
+    { name = "unidiff", specifier = "==1.0.1" },
 ]
 
 [[package]]
@@ -87,9 +87,9 @@ wheels = [
 
 [[package]]
 name = "unidiff"
-version = "1.0.0"
+version = "1.0.1"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/98/48/6ebfbda867e1a07bab3bbffe820e980bff8262c97ff77d1496a4fa15e711/unidiff-1.0.0.tar.gz", hash = "sha256:5e5d5cfab2dc98be819b74747ab7d9f5af8695369ec8710b93f9ab0f0ae6a449", size = 29365, upload-time = "2026-07-25T19:13:59.917Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/9f/7a/f891dba8225c20cce4417443073e67f33e01fae9715a6477f59eb32654ae/unidiff-1.0.1.tar.gz", hash = "sha256:d9425bc516390c54743a1045b2c1c97f02d245a913a241dd499f958adb2df998", size = 31800, upload-time = "2026-09-15T01:39:10.847Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/65/ca/860142913b2fee25c78b3af733054e248c488bd83cf6cfb97969e98e3bcf/unidiff-1.0.0-py3-none-any.whl", hash = "sha256:2e1fb4eebe2354a26a1f3d51efe2e5d504cae5764b98ed8bdbb4e7a000baff28", size = 18279, upload-time = "2026-07-25T19:13:58.797Z" },
+    { url = "https://files.pythonhosted.org/packages/af/c9/a0529375e0162327fd1cb0dc6785c7a6e56dfae011c2d7b57d611ff84347/unidiff-1.0.1-py3-none-any.whl", hash = "sha256:5e2ca461eda8a4c761ad0922e3e8a65742f359dc60301a3a055b70fd7c158680", size = 18733, upload-time = "2026-09-15T01:39:09.395Z" },
 ]