diff --git a/pyproject.toml b/pyproject.toml
index 51ad93b3..71b70784 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ license = {text = "MIT"}
 readme = "README.md"
 requires-python = ">=3.14.3,<3.15"
 dependencies = [
-    "homeassistant==2026.8.0",
+    "homeassistant==2026.8.3",
     "span-panel-api==3.3.0",
     # Separate distributions, not dependencies of the bootstrap: adapters are found
     # through the `span_panel_api.schema_adapters` entry-point group, so each one has
@@ -19,7 +19,7 @@ dependencies = [
 
 [dependency-groups]
 dev = [
-    "homeassistant-stubs==2026.8.0",
+    "homeassistant-stubs==2026.8.3",
     "types-requests",
     "types-PyYAML",
     "mypy==2.1.0",
@@ -36,7 +36,7 @@ dev = [
     # and the `homeassistant` pin above are a single choice rather than two.
     # 0.13.354 is the release that pins 2026.8.0, the version this integration
     # declares as its floor and therefore the one worth testing against.
-    "pytest-homeassistant-custom-component==0.13.354",
+    "pytest-homeassistant-custom-component==0.13.358",
     "isort",
     "vulture>=2.14",
 ]
diff --git a/requirements_test.txt b/requirements_test.txt
index c1b255d6..6d01ab3f 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -1,8 +1,8 @@
 pytest>=9.0.3
 pytest-asyncio>=1.4.0
 setuptools>=65.7.0
-pytest-homeassistant-custom-component==0.13.354
-homeassistant==2026.8.0
+pytest-homeassistant-custom-component==0.13.358
+homeassistant==2026.8.3
 span-panel-api==3.3.0
 span-panel-api-schema-0==1.1.2
 span-panel-api-schema-1==1.1.3