diff --git a/gapic-common/Gemfile.lock b/gapic-common/Gemfile.lock
index 42048aa..28df410 100644
--- a/gapic-common/Gemfile.lock
+++ b/gapic-common/Gemfile.lock
@@ -10,7 +10,7 @@ PATH
       googleapis-common-protos (~> 1.6)
       googleapis-common-protos-types (~> 1.15)
       googleauth (~> 1.12)
-      grpc (~> 1.66)
+      grpc (>= 1.83, < 2.a)
 
 GEM
   remote: https://rubygems.org/
diff --git a/gapic-common/gapic-common.gemspec b/gapic-common/gapic-common.gemspec
index 204f9a0..dd28e43 100644
--- a/gapic-common/gapic-common.gemspec
+++ b/gapic-common/gapic-common.gemspec
@@ -43,5 +43,5 @@ Gem::Specification.new do |spec|
   spec.add_dependency "google-cloud-env", "~> 2.2"
   spec.add_dependency "google-logging-utils", "~> 0.1"
   spec.add_dependency "google-protobuf", "~> 4.26"
-  spec.add_dependency "grpc", "~> 1.66"
+  spec.add_dependency "grpc", ">= 1.83", "< 2.a"
 end