diff --git a/requirements_tests.txt b/requirements_tests.txt
index a19f1345e..338dac4ca 100644
--- a/requirements_tests.txt
+++ b/requirements_tests.txt
@@ -1,5 +1,5 @@
 flake8==3.7.9
-pylint==2.4.4
+pylint==2.5.0
 pytest==5.4.1
 pytest-timeout==1.3.4
 pytest-aiohttp==0.3.0
diff --git a/supervisor/api/discovery.py b/supervisor/api/discovery.py
index ddc03abc5..523402674 100644
--- a/supervisor/api/discovery.py
+++ b/supervisor/api/discovery.py
@@ -64,7 +64,7 @@ class APIDiscovery(CoreSysAttributes):
 
         # Access?
         if body[ATTR_SERVICE] not in addon.discovery:
-            raise APIForbidden(f"Can't use discovery!")
+            raise APIForbidden("Can't use discovery!")
 
         # Process discovery message
         message = self.sys_discovery.send(addon, **body)
@@ -94,7 +94,7 @@ class APIDiscovery(CoreSysAttributes):
 
         # Permission
         if message.addon != addon.slug:
-            raise APIForbidden(f"Can't remove discovery message")
+            raise APIForbidden("Can't remove discovery message")
 
         self.sys_discovery.remove(message)
         return True
diff --git a/supervisor/api/snapshots.py b/supervisor/api/snapshots.py
index 152c820aa..361ca2bca 100644
--- a/supervisor/api/snapshots.py
+++ b/supervisor/api/snapshots.py
@@ -181,7 +181,7 @@ class APISnapshots(CoreSysAttributes):
     async def upload(self, request):
         """Upload a snapshot file."""
         with TemporaryDirectory(dir=str(self.sys_config.path_tmp)) as temp_dir:
-            tar_file = Path(temp_dir, f"snapshot.tar")
+            tar_file = Path(temp_dir, "snapshot.tar")
 
             try:
                 with tar_file.open("wb") as snapshot: