diff --git a/platformio/dependencies.py b/platformio/dependencies.py
index 952ec9b3..334c0af1 100644
--- a/platformio/dependencies.py
+++ b/platformio/dependencies.py
@@ -30,7 +30,7 @@ def get_core_dependencies():
 
 def get_pip_dependencies():
     core = [
-        "bottle == 0.12.*",
+        "bottle == %s" % ("0.12.*" if PY36 else "0.13.*"),
         "click >=8.0.4, <9",
         "colorama",
         "marshmallow == 3.*",
diff --git a/tests/commands/pkg/test_uninstall.py b/tests/commands/pkg/test_uninstall.py
index 51627a75..6a759fbc 100644
--- a/tests/commands/pkg/test_uninstall.py
+++ b/tests/commands/pkg/test_uninstall.py
@@ -117,7 +117,7 @@ def test_global_packages(
         "ArduinoJson",
         "AsyncMqttClient",
         "Bounce2",
-        "ESPAsyncTCP"
+        "ESPAsyncTCP",
     ]
 
     # custom storage