diff --git a/packages/flutter_html_math/pubspec.yaml b/packages/flutter_html_math/pubspec.yaml
index df968cd0a1..375538de19 100644
--- a/packages/flutter_html_math/pubspec.yaml
+++ b/packages/flutter_html_math/pubspec.yaml
@@ -12,7 +12,7 @@ dependencies:
     sdk: flutter
   html: '>=0.15.0 <1.0.0'
   flutter_html: ^3.0.0-beta.2
-  flutter_math_fork: ^0.6.0
+  flutter_math_fork: '>=0.6.0 <1.0.0'
 
 dev_dependencies:
   flutter_test: