diff --git a/diffusion_planner/requirements.txt b/diffusion_planner/requirements.txt
index 4e2ce540..72862dbc 100644
--- a/diffusion_planner/requirements.txt
+++ b/diffusion_planner/requirements.txt
@@ -1,4 +1,4 @@
-setuptools==78.1.0
+setuptools==78.1.1
 protobuf==5.29.6
 pytorch_lightning==2.0.1
 timm==1.0.10
diff --git a/uv.lock b/uv.lock
index cc149f5c..ab527bc2 100644
--- a/uv.lock
+++ b/uv.lock
@@ -2534,11 +2534,11 @@ wheels = [
 
 [[package]]
 name = "setuptools"
-version = "81.0.0"
+version = "78.1.1"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/0d/1c/73e719955c59b8e424d015ab450f51c0af856ae46ea2da83eba51cc88de1/setuptools-81.0.0.tar.gz", hash = "sha256:487b53915f52501f0a79ccfd0c02c165ffe06631443a886740b91af4b7a5845a", size = 1198299, upload-time = "2026-02-06T21:10:39.601Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/81/9c/42314ee079a3e9c24b27515f9fbc7a3c1d29992c33451779011c74488375/setuptools-78.1.1.tar.gz", hash = "sha256:fcc17fd9cd898242f6b4adfaca46137a9edef687f43e6f78469692a5e70d851d", size = 1368163, upload-time = "2025-04-19T18:23:36.68Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/e1/e3/c164c88b2e5ce7b24d667b9bd83589cf4f3520d97cad01534cd3c4f55fdb/setuptools-81.0.0-py3-none-any.whl", hash = "sha256:fdd925d5c5d9f62e4b74b30d6dd7828ce236fd6ed998a08d81de62ce5a6310d6", size = 1062021, upload-time = "2026-02-06T21:10:37.175Z" },
+    { url = "https://files.pythonhosted.org/packages/90/99/158ad0609729111163fc1f674a5a42f2605371a4cf036d0441070e2f7455/setuptools-78.1.1-py3-none-any.whl", hash = "sha256:c3a9c4211ff4c309edb8b8c4f1cbfa7ae324c4ba9f91ff254e3d305b9fd54561", size = 1256462, upload-time = "2025-04-19T18:23:34.525Z" },
 ]
 
 [[package]]