diff --git a/requirements_test.txt b/requirements_test.txt
index 20cb1706209..8e74eefc5ef 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -14,5 +14,5 @@ pytest-aiohttp==0.3.0
 pytest-cov==2.7.1
 pytest-sugar==0.9.2
 pytest-timeout==1.3.3
-pytest==4.6.3
+pytest==5.0.0
 requests_mock==1.5.2
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index a2807048d0d..0a88a82230c 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -15,7 +15,7 @@ pytest-aiohttp==0.3.0
 pytest-cov==2.7.1
 pytest-sugar==0.9.2
 pytest-timeout==1.3.3
-pytest==4.6.3
+pytest==5.0.0
 requests_mock==1.5.2
 
 
diff --git a/tests/helpers/test_temperature.py b/tests/helpers/test_temperature.py
index a506288b627..cdc3073f71f 100644
--- a/tests/helpers/test_temperature.py
+++ b/tests/helpers/test_temperature.py
@@ -16,7 +16,7 @@ def test_temperature_not_a_number(hass):
         display_temp(hass, temp, TEMP_CELSIUS, PRECISION_HALVES)
 
     assert "Temperature is not a number: {}".format(temp) \
-        in str(exception)
+        in str(exception.value)
 
 
 def test_celsius_halves(hass):