diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index d31e3523f48..7e225cceaee 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -11,7 +11,7 @@ pip>=8.0.3
 pytz>=2018.04
 pyyaml>=3.13,<4
 requests==2.20.0
-ruamel.yaml==0.15.72
+ruamel.yaml==0.15.78
 voluptuous==0.11.5
 voluptuous-serialize==2.0.0
 
diff --git a/requirements_all.txt b/requirements_all.txt
index 0a1f17c23d3..ea1573d65be 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -12,7 +12,7 @@ pip>=8.0.3
 pytz>=2018.04
 pyyaml>=3.13,<4
 requests==2.20.0
-ruamel.yaml==0.15.72
+ruamel.yaml==0.15.78
 voluptuous==0.11.5
 voluptuous-serialize==2.0.0
 
diff --git a/setup.py b/setup.py
index 7cd551b573a..9e24362fe8a 100755
--- a/setup.py
+++ b/setup.py
@@ -46,7 +46,7 @@ REQUIRES = [
     'pytz>=2018.04',
     'pyyaml>=3.13,<4',
     'requests==2.20.0',
-    'ruamel.yaml==0.15.72',
+    'ruamel.yaml==0.15.78',
     'voluptuous==0.11.5',
     'voluptuous-serialize==2.0.0',
 ]