diff --git a/packages/climate-ref-core/pyproject.toml b/packages/climate-ref-core/pyproject.toml
index e47ebb7f1..bc9dd5e24 100644
--- a/packages/climate-ref-core/pyproject.toml
+++ b/packages/climate-ref-core/pyproject.toml
@@ -39,7 +39,7 @@ dependencies = [
     "pyyaml>=6.0.2",
     "psutil>=5.9.8",
     # Not used directly, but required to support some installations
-    "setuptools<84",
+    "setuptools<85",
 
     # ESGF data fetching
     "intake-esgf>=2025.7.16",
diff --git a/uv.lock b/uv.lock
index a10765111..f438daa8f 100644
--- a/uv.lock
+++ b/uv.lock
@@ -883,7 +883,7 @@ requires-dist = [
     { name = "pyyaml", specifier = ">=6.0.2" },
     { name = "requests" },
     { name = "rich" },
-    { name = "setuptools", specifier = "<84" },
+    { name = "setuptools", specifier = "<85" },
     { name = "typing-extensions" },
 ]
 provides-extras = ["aws"]
@@ -4519,11 +4519,11 @@ wheels = [
 
 [[package]]
 name = "setuptools"
-version = "83.0.0"
+version = "84.0.0"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/34/26/f5d29e25ffdb535afef2d35cdb55b325298f96debd670da4c325e08d70f4/setuptools-83.0.0.tar.gz", hash = "sha256:025bccbbf0fa05b6192bc64ae1e7b16e001fd6d6d4d5de03c97b1c1ade523bef", size = 1154254, upload-time = "2026-07-04T15:31:22.699Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/6d/44/f5da03a8ef95d369145c5bb53050e7877c9f3d312e128605fd9504829143/setuptools-84.0.0.tar.gz", hash = "sha256:f4695c21257f0d9b537ec2692c941d02ee143b7cc1276941349a546573b2ef73", size = 1168449, upload-time = "2026-08-08T18:27:58.365Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/5d/40/e1e72872c6354b306daef1703549e8e83b4d43cfea356311bf722a043752/setuptools-83.0.0-py3-none-any.whl", hash = "sha256:29b23c360f22f414dc7336bb39178cc7bcbf6021ed2733cde173f09dba19abb3", size = 1008090, upload-time = "2026-07-04T15:31:20.885Z" },
+    { url = "https://files.pythonhosted.org/packages/95/9c/c510029fc6ef33a6275cd2c5d3cecd6613dfd6aa401d57c54f1c18852ccf/setuptools-84.0.0-py3-none-any.whl", hash = "sha256:51a52592b3b99e102b609654876bd65f19f999935166d1352678931132b0c670", size = 818216, upload-time = "2026-08-08T18:27:56.719Z" },
 ]
 
 [[package]]