diff --git a/pubspec.yaml b/pubspec.yaml
index 4a5ebcb..d620029 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -4,11 +4,11 @@ version: 1.0.1
 homepage: https://github.com/limonadev/diff_image
 
 environment:
-  sdk: '>=2.5.0 <3.0.0'
+  sdk: ">=2.2.2 <3.0.0"
 
 dependencies:
-  http: ^0.12.2
-  image: ^2.1.18
+  http: ^0.13.4
+  image: ^3.1.3
   meta: ^1.1.8
 #  path: ^1.6.0