diff --git a/mjx/requirements.txt b/mjx/requirements.txt
index 3747653a..9b8cf8c1 100644
--- a/mjx/requirements.txt
+++ b/mjx/requirements.txt
@@ -76,8 +76,9 @@ scipy==1.13.1; python_version == '3.9' \
     --hash=sha256:d533654b7d221a6a97304ab63c41c96473ff04459e404b83275b60aa8f4b7004 \
     --hash=sha256:8335549ebbca860c52bf3d02f80784e91a004b71b059e3eea9678ba994796a24 \
     --hash=sha256:436bbb42a94a8aeef855d755ce5a465479c721e9d684de76bf61a62e7c2b81d5
-setuptools==75.5.0 \
-    --hash=sha256:87cb777c3b96d638ca02031192d40390e0ad97737e27b6b4fa831bea86f2f829
+setuptools==78.1.1 \
+    --hash=sha256:c3a9c4211ff4c309edb8b8c4f1cbfa7ae324c4ba9f91ff254e3d305b9fd54561 \
+    --hash=sha256:fcc17fd9cd898242f6b4adfaca46137a9edef687f43e6f78469692a5e70d851d
 trimesh==4.5.2 \
     --hash=sha256:2e50f3a7fd135c3045da887a1b9f91230528f3ce11d2ec1ba44750d82d6b4f73
 wheel==0.45.0 \
diff --git a/python/build_requirements.txt b/python/build_requirements.txt
index 53475f10..0c1173df 100644
--- a/python/build_requirements.txt
+++ b/python/build_requirements.txt
@@ -57,8 +57,9 @@ PyOpenGL==3.1.7 \
     --hash=sha256:a6ab19cf290df6101aaf7470843a9c46207789855746399d0af92521a0a92b7a
 pytest==8.3.3 \
     --hash=sha256:a6853c7375b2663155079443d2e45de913a911a11d669df02a50814944db57b2
-setuptools==75.5.0 \
-    --hash=sha256:87cb777c3b96d638ca02031192d40390e0ad97737e27b6b4fa831bea86f2f829
+setuptools==78.1.1 \
+    --hash=sha256:c3a9c4211ff4c309edb8b8c4f1cbfa7ae324c4ba9f91ff254e3d305b9fd54561 \
+    --hash=sha256:fcc17fd9cd898242f6b4adfaca46137a9edef687f43e6f78469692a5e70d851d
 wheel==0.45.0 \
     --hash=sha256:52f0baa5e6522155090a09c6bd95718cc46956d1b51d537ea5454249edb671c7
 
diff --git a/python/make_sdist_requirements.txt b/python/make_sdist_requirements.txt
index 10f531c1..f961524c 100644
--- a/python/make_sdist_requirements.txt
+++ b/python/make_sdist_requirements.txt
@@ -4,8 +4,9 @@ build==1.2.2.post1 \
     --hash=sha256:1d61c0887fa860c01971625baae8bdd338e517b836a2f70dd1f7aa3a6b2fc5b5
 pip==24.3.1 \
     --hash=sha256:3790624780082365f47549d032f3770eeb2b1e8bd1f7b2e02dace1afa361b4ed
-setuptools==75.5.0 \
-    --hash=sha256:87cb777c3b96d638ca02031192d40390e0ad97737e27b6b4fa831bea86f2f829
+setuptools==78.1.1 \
+    --hash=sha256:c3a9c4211ff4c309edb8b8c4f1cbfa7ae324c4ba9f91ff254e3d305b9fd54561 \
+    --hash=sha256:fcc17fd9cd898242f6b4adfaca46137a9edef687f43e6f78469692a5e70d851d
 
 # Transitive dependencies of build
 colorama==0.4.6; platform_system == 'Windows' \