diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index 1933448edda..03e43ba139a 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -4,7 +4,7 @@ aiohttp==3.6.1
 aiohttp_cors==0.7.0
 astral==1.10.1
 async_timeout==3.0.1
-attrs==19.2.0
+attrs==19.3.0
 bcrypt==3.1.7
 certifi>=2019.9.11
 contextvars==2.4;python_version<"3.7"
diff --git a/requirements_all.txt b/requirements_all.txt
index 1a3da42e9e8..4d6e59a6912 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -2,7 +2,7 @@
 aiohttp==3.6.1
 astral==1.10.1
 async_timeout==3.0.1
-attrs==19.2.0
+attrs==19.3.0
 bcrypt==3.1.7
 certifi>=2019.9.11
 contextvars==2.4;python_version<"3.7"
diff --git a/setup.py b/setup.py
index e8b32fd8edf..612ac7d0ce8 100755
--- a/setup.py
+++ b/setup.py
@@ -34,7 +34,7 @@ REQUIRES = [
     "aiohttp==3.6.1",
     "astral==1.10.1",
     "async_timeout==3.0.1",
-    "attrs==19.2.0",
+    "attrs==19.3.0",
     "bcrypt==3.1.7",
     "certifi>=2019.9.11",
     'contextvars==2.4;python_version<"3.7"',