diff --git a/app/main.py b/app/main.py
index a5bfaf6..fc9b280 100644
--- a/app/main.py
+++ b/app/main.py
@@ -18,7 +18,7 @@ def create_app(settings: Settings | None = None, gateway: TPLinkGateway | None =
     settings = settings or Settings()
     logging.basicConfig(level=settings.log_level)
 
-    app = FastAPI(title="TP-Link Kasa API Service", version="2.0.0")
+    app = FastAPI(title="TP-Link Kasa API Service", version="3.0.0")
     app.state.settings = settings
     # Injectable so tests supply a gateway wired to a fake library manager,
     # keeping this the single place the object graph is assembled.
diff --git a/pyproject.toml b/pyproject.toml
index cfbb305..8f77ba9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "tplinkcloud-service"
-version = "2.0.0"
+version = "3.0.0"
 description = "REST API for monitoring and controlling TP-Link Kasa devices via the TP-Link cloud"
 readme = "README.md"
 license = { file = "LICENSE" }
@@ -16,7 +16,7 @@ dependencies = [
     # (Kasa+Tapo) surface. Upper bound because the session restore reaches a few
     # library internals (see tplink_service._create_session) that a major bump
     # could change; treat that bump as a deliberate migration.
-    "tplink-cloud-api>=5.2.0,<6",
+    "tplink-cloud-api>=5.2.1,<6",
 ]
 
 [dependency-groups]
diff --git a/uv.lock b/uv.lock
index 89fd43d..e610587 100644
--- a/uv.lock
+++ b/uv.lock
@@ -809,20 +809,20 @@ wheels = [
 
 [[package]]
 name = "tplink-cloud-api"
-version = "5.2.0"
+version = "5.2.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "aiohttp" },
     { name = "requests" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/26/f2/72e3b43f9f36ece386ec2fd968d599fd9a544da14a4c298f1646c2961a1c/tplink_cloud_api-5.2.0.tar.gz", hash = "sha256:a35ef9c79b5608e893a5e66dec3215e8b3bc7c99b2cc271d09c3032966fdcde3", size = 52773, upload-time = "2026-02-08T07:13:37.536Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/2f/44/2b89ec7c07fd778dbabb9e954b21654579c80ac520f2e19dc86eb5ef365a/tplink_cloud_api-5.2.1.tar.gz", hash = "sha256:29aa7305965168a3e4e6d4d1ba65a943a2f2af8e01129eaf96f350a471d6db60", size = 53121, upload-time = "2026-08-19T22:04:59.099Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/9c/b6/42781ba77d537cb727034647a81ed41d49357b0e5cb8ecb3b6477281351a/tplink_cloud_api-5.2.0-py3-none-any.whl", hash = "sha256:f2821835bf1550490fd1852d6aafe4fedf27a82337b85f8eab935d067bc35db7", size = 52885, upload-time = "2026-02-08T07:13:35.862Z" },
+    { url = "https://files.pythonhosted.org/packages/1f/b3/e5d2525a6baa5963f8cb880bef5a9684299b7df1e877cb9ed8b33b139ad6/tplink_cloud_api-5.2.1-py3-none-any.whl", hash = "sha256:ba43e171959865d1898230b002e25d3ba609a2375f6144bf81eaa4ad4c982fe3", size = 53188, upload-time = "2026-08-19T22:04:57.674Z" },
 ]
 
 [[package]]
 name = "tplinkcloud-service"
-version = "2.0.0"
+version = "3.0.0"
 source = { virtual = "." }
 dependencies = [
     { name = "cachetools" },
@@ -849,7 +849,7 @@ requires-dist = [
     { name = "pydantic", specifier = ">=2.10" },
     { name = "pydantic-settings", specifier = ">=2.7" },
     { name = "python-multipart", specifier = ">=0.0.20" },
-    { name = "tplink-cloud-api", specifier = ">=5.2.0,<6" },
+    { name = "tplink-cloud-api", specifier = ">=5.2.1,<6" },
     { name = "uvicorn", extras = ["standard"], specifier = ">=0.34" },
 ]