diff --git a/pubspec.yaml b/pubspec.yaml
index ed308c7..9d4dbc5 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -23,7 +23,7 @@ dev_dependencies:
   build_runner: ^2.4.5
   build_verify: ^3.1.0
   build_version: ^2.1.1
-  mocktail: ^0.3.0
+  mocktail: ">=0.3.0 <2.0.0"
   test: ^1.24.3
 
 executables: