diff --git a/google-cloud-spanner/Gemfile b/google-cloud-spanner/Gemfile
index 45c7119f..f8088671 100644
--- a/google-cloud-spanner/Gemfile
+++ b/google-cloud-spanner/Gemfile
@@ -3,14 +3,7 @@ source "https://rubygems.org"
 gemspec
 
 gem "autotest-suffix", "~> 1.1"
-gem "gapic-common", ">= 0.25.0"
-gem "google-cloud-core", "~> 1.7.0"
-gem "google-cloud-errors", "~> 1.4.0"
-gem "google-cloud-spanner-admin-database-v1", "~> 1.3"
-gem "google-cloud-spanner-admin-instance-v1", "~> 1.5"
-gem "google-cloud-spanner-v1", "~> 1.5"
 gem "google-style", "~> 1.30.1"
-gem "grpc", "~> 1.67"
 gem "grpc-tools", "~> 1.67"
 gem "minitest", "~> 5.25"
 gem "minitest-autotest", "~> 1.0"
diff --git a/google-cloud-spanner/google-cloud-spanner.gemspec b/google-cloud-spanner/google-cloud-spanner.gemspec
index f81551d6..010ac7d0 100644
--- a/google-cloud-spanner/google-cloud-spanner.gemspec
+++ b/google-cloud-spanner/google-cloud-spanner.gemspec
@@ -21,7 +21,7 @@ Gem::Specification.new do |gem|
   gem.add_dependency "bigdecimal", "~> 3.0"
   gem.add_dependency "concurrent-ruby", "~> 1.0"
   gem.add_dependency "google-cloud-core", "~> 1.7"
-  gem.add_dependency "google-cloud-spanner-admin-database-v1", "~> 1.4"
-  gem.add_dependency "google-cloud-spanner-admin-instance-v1", "~> 1.6"
+  gem.add_dependency "google-cloud-spanner-admin-database-v1", "~> 1.6"
+  gem.add_dependency "google-cloud-spanner-admin-instance-v1", "~> 2.0"
   gem.add_dependency "google-cloud-spanner-v1", "~> 1.6"
 end