diff --git a/agent-governance-python/agent-hypervisor/pyproject.toml b/agent-governance-python/agent-hypervisor/pyproject.toml
index d644b7128..3f4d280e0 100644
--- a/agent-governance-python/agent-hypervisor/pyproject.toml
+++ b/agent-governance-python/agent-hypervisor/pyproject.toml
@@ -32,7 +32,7 @@ dev = [
     "pytest-asyncio>=1.4.0,<2.0",
     "pytest-cov>=7.1.0,<8.0",
     "hypothesis>=6.155.7,<7.0",
-    "ruff>=0.15.18,<1.0",
+    "ruff>=0.15.20,<1.0",
     "mypy>=2.1.0,<3.0",
     "jsonschema>=4.26.0,<5.0",
     "pydantic>=2.13.4,<3.0",
diff --git a/agent-governance-python/agent-mesh/pyproject.toml b/agent-governance-python/agent-mesh/pyproject.toml
index 004cd0f4c..bf8d19b08 100644
--- a/agent-governance-python/agent-mesh/pyproject.toml
+++ b/agent-governance-python/agent-mesh/pyproject.toml
@@ -35,7 +35,7 @@ dev = [
     "pytest-cov>=7.1.0,<8.0",
     "hypothesis>=6.155.7,<7.0",
     "black>=26.5.1,<27.0",
-    "ruff>=0.15.18,<1.0",
+    "ruff>=0.15.20,<1.0",
     "mypy>=2.1.0,<3.0",
     "fakeredis>=2.36.2,<3.0",
     "prometheus-client>=0.25.0,<1.0",
diff --git a/agent-governance-python/agent-os/pyproject.toml b/agent-governance-python/agent-os/pyproject.toml
index 14db4995f..02a1016d4 100644
--- a/agent-governance-python/agent-os/pyproject.toml
+++ b/agent-governance-python/agent-os/pyproject.toml
@@ -37,7 +37,7 @@ dev = [
     "pytest-asyncio>=1.4.0,<2.0",
     "pytest-cov>=7.1.0,<8.0",
     "mypy>=2.1.0,<3.0",
-    "ruff>=0.15.18,<1.0",
+    "ruff>=0.15.20,<1.0",
     "import-linter>=2.0,<3.0",
     "pyyaml>=6.0.0,<7.0",
     "typer>=0.9.0,<1.0",
diff --git a/agent-governance-python/agent-primitives/pyproject.toml b/agent-governance-python/agent-primitives/pyproject.toml
index 552656d59..df6c90469 100644
--- a/agent-governance-python/agent-primitives/pyproject.toml
+++ b/agent-governance-python/agent-primitives/pyproject.toml
@@ -41,7 +41,7 @@ dependencies = [
 dev = [
     "pytest>=9.1.1,<10.0",
     "mypy>=2.1.0,<3.0",
-    "ruff>=0.15.18,<1.0",
+    "ruff>=0.15.20,<1.0",
 ]
 
 [project.urls]
diff --git a/agent-governance-python/agent-sre/pyproject.toml b/agent-governance-python/agent-sre/pyproject.toml
index 0f0e30c5b..8b0978789 100644
--- a/agent-governance-python/agent-sre/pyproject.toml
+++ b/agent-governance-python/agent-sre/pyproject.toml
@@ -33,7 +33,7 @@ dev = [
     "pytest>=9.1.1,<10.0",
     "pytest-cov>=7.1.0,<8.0",
     "pytest-asyncio>=1.4.0,<2.0",
-    "ruff>=0.15.18,<1.0",
+    "ruff>=0.15.20,<1.0",
     "mypy>=2.1.0,<3.0",
     "pydantic>=2.13.4,<3.0",
     "pyyaml>=6.0.3,<7.0",