diff --git a/avro_turf.gemspec b/avro_turf.gemspec
index 77ecc6d..49141eb 100644
--- a/avro_turf.gemspec
+++ b/avro_turf.gemspec
@@ -19,7 +19,7 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
-  spec.add_dependency "avro", ">= 1.7.7", "< 1.12"
+  spec.add_dependency "avro", ">= 1.8.0", "< 1.12"
   spec.add_dependency "excon", "~> 0.71"
 
   spec.add_development_dependency "bundler", "~> 2.0"