diff --git a/place_tracker/pubspec.yaml b/place_tracker/pubspec.yaml
index cda4b6f0d..0a55fb394 100644
--- a/place_tracker/pubspec.yaml
+++ b/place_tracker/pubspec.yaml
@@ -4,7 +4,7 @@ description: A new Flutter project.
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.1.0 <3.0.0"
+  sdk: ">=2.2.0 <3.0.0"
 
 dependencies:
   flutter:
@@ -24,4 +24,4 @@ flutter:
   assets:
     - assets/
 
-  uses-material-design: true
\ No newline at end of file
+  uses-material-design: true