diff --git a/custom_components/mypyllant/manifest.json b/custom_components/mypyllant/manifest.json
index 7674f14..fc573ec 100644
--- a/custom_components/mypyllant/manifest.json
+++ b/custom_components/mypyllant/manifest.json
@@ -10,7 +10,7 @@
   "iot_class": "cloud_polling",
   "issue_tracker": "https://github.com/signalkraft/mypyllant-component/issues",
   "requirements": [
-    "myPyllant==0.8.15"
+    "myPyllant==0.8.17"
   ],
   "version": "v0.8.4"
 }
diff --git a/dev-requirements.txt b/dev-requirements.txt
index a3db119..00d9856 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -11,7 +11,7 @@ types-PyYAML~=6.0.12.20240311
 
 # Need specific versions
 pytest-homeassistant-custom-component==0.13.142
-myPyllant==0.8.15
+myPyllant==0.8.17
 
 # Versions handled by pytest-homeassistant-custom-component
 freezegun
diff --git a/tests/test_calendar.py b/tests/test_calendar.py
index ff8c552..375fe7f 100644
--- a/tests/test_calendar.py
+++ b/tests/test_calendar.py
@@ -150,7 +150,7 @@ async def test_dhw_no_circulation_calendar(
     mocked_api: MyPyllantAPI,
     system_coordinator_mock,
 ):
-    test_data = load_test_data(DATA_DIR / "heatpump_electric_backup")
+    test_data = load_test_data(DATA_DIR / "heatpump_cooling")
     with mypyllant_aioresponses(test_data) as _:
         system_coordinator_mock.data = (
             await system_coordinator_mock._async_update_data()
diff --git a/tests/test_sensor.py b/tests/test_sensor.py
index 21379dd..757b2ba 100644
--- a/tests/test_sensor.py
+++ b/tests/test_sensor.py
@@ -102,7 +102,7 @@ async def test_zone_sensors(
     mocked_api: MyPyllantAPI,
     system_coordinator_mock,
 ):
-    test_data = load_test_data(DATA_DIR / "heatpump_electric_backup")
+    test_data = load_test_data(DATA_DIR / "heatpump_cooling")
     with mypyllant_aioresponses(test_data) as _:
         system_coordinator_mock.data = (
             await system_coordinator_mock._async_update_data()