diff --git a/homeassistant/components/mcp_server/manifest.json b/homeassistant/components/mcp_server/manifest.json
index 18b2e5bc417..a3e00d13c4b 100644
--- a/homeassistant/components/mcp_server/manifest.json
+++ b/homeassistant/components/mcp_server/manifest.json
@@ -8,6 +8,6 @@
   "integration_type": "service",
   "iot_class": "local_push",
   "quality_scale": "silver",
-  "requirements": ["mcp==1.1.2", "aiohttp_sse==2.2.0", "anyio==4.8.0"],
+  "requirements": ["mcp==1.1.2", "aiohttp_sse==2.2.0", "anyio==4.9.0"],
   "single_config_entry": true
 }
diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index 476ab97fe1f..eef447193c4 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -109,7 +109,7 @@ uuid==1000000000.0.0
 # these requirements are quite loose. As the entire stack has some outstanding issues, and
 # even newer versions seem to introduce new issues, it's useful for us to pin all these
 # requirements so we can directly link HA versions to these library versions.
-anyio==4.8.0
+anyio==4.9.0
 h11==0.14.0
 httpcore==1.0.7
 
diff --git a/requirements_all.txt b/requirements_all.txt
index b52a0614e31..8f7daaf2243 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -479,7 +479,7 @@ anthemav==1.4.1
 anthropic==0.47.2
 
 # homeassistant.components.mcp_server
-anyio==4.8.0
+anyio==4.9.0
 
 # homeassistant.components.weatherkit
 apple_weatherkit==1.1.3
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index b592491b173..280327f8d23 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -452,7 +452,7 @@ anthemav==1.4.1
 anthropic==0.47.2
 
 # homeassistant.components.mcp_server
-anyio==4.8.0
+anyio==4.9.0
 
 # homeassistant.components.weatherkit
 apple_weatherkit==1.1.3
diff --git a/script/gen_requirements_all.py b/script/gen_requirements_all.py
index fa823fa4834..1be6286d30c 100755
--- a/script/gen_requirements_all.py
+++ b/script/gen_requirements_all.py
@@ -139,7 +139,7 @@ uuid==1000000000.0.0
 # these requirements are quite loose. As the entire stack has some outstanding issues, and
 # even newer versions seem to introduce new issues, it's useful for us to pin all these
 # requirements so we can directly link HA versions to these library versions.
-anyio==4.8.0
+anyio==4.9.0
 h11==0.14.0
 httpcore==1.0.7