diff --git a/blazer.gemspec b/blazer.gemspec
index 221dd820e..9c269c5ec 100644
--- a/blazer.gemspec
+++ b/blazer.gemspec
@@ -17,6 +17,6 @@ Gem::Specification.new do |spec|
 
   spec.add_dependency "railties", ">= 6.1"
   spec.add_dependency "activerecord", ">= 6.1"
-  spec.add_dependency "chartkick", ">= 3.2"
-  spec.add_dependency "safely_block", ">= 0.1.1"
+  spec.add_dependency "chartkick", ">= 5"
+  spec.add_dependency "safely_block", ">= 0.4"
 end