diff --git a/Gemfile.lock b/Gemfile.lock
index 570e6e1..19ec156 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,7 +2,7 @@ PATH
   remote: .
   specs:
     gauge-ruby (0.9.2)
-      grpc (~> 1.10, >= 1.10.0, < 1.65)
+      grpc (~> 1.10, >= 1.10.0, < 1.67)
       parser (>= 3.1, < 4.0)
       unparser (>= 0.6.4, < 0.7.0)
 
@@ -10,31 +10,42 @@ GEM
   remote: https://rubygems.org/
   specs:
     ast (2.4.2)
+    bigdecimal (3.1.8)
     diff-lcs (1.5.1)
     docile (1.4.1)
-    google-protobuf (3.25.5)
-    google-protobuf (3.25.5-aarch64-linux)
-    google-protobuf (3.25.5-arm64-darwin)
-    google-protobuf (3.25.5-x86_64-darwin)
-    google-protobuf (3.25.5-x86_64-linux)
+    google-protobuf (4.28.2)
+      bigdecimal
+      rake (>= 13)
+    google-protobuf (4.28.2-aarch64-linux)
+      bigdecimal
+      rake (>= 13)
+    google-protobuf (4.28.2-arm64-darwin)
+      bigdecimal
+      rake (>= 13)
+    google-protobuf (4.28.2-x86_64-darwin)
+      bigdecimal
+      rake (>= 13)
+    google-protobuf (4.28.2-x86_64-linux)
+      bigdecimal
+      rake (>= 13)
     googleapis-common-protos-types (1.16.0)
       google-protobuf (>= 3.18, < 5.a)
-    grpc (1.64.3)
-      google-protobuf (~> 3.25)
+    grpc (1.66.0)
+      google-protobuf (>= 3.25, < 5.0)
       googleapis-common-protos-types (~> 1.0)
-    grpc (1.64.3-aarch64-linux)
-      google-protobuf (~> 3.25)
+    grpc (1.66.0-aarch64-linux)
+      google-protobuf (>= 3.25, < 5.0)
       googleapis-common-protos-types (~> 1.0)
-    grpc (1.64.3-arm64-darwin)
-      google-protobuf (~> 3.25)
+    grpc (1.66.0-arm64-darwin)
+      google-protobuf (>= 3.25, < 5.0)
       googleapis-common-protos-types (~> 1.0)
-    grpc (1.64.3-x86_64-darwin)
-      google-protobuf (~> 3.25)
+    grpc (1.66.0-x86_64-darwin)
+      google-protobuf (>= 3.25, < 5.0)
       googleapis-common-protos-types (~> 1.0)
-    grpc (1.64.3-x86_64-linux)
-      google-protobuf (~> 3.25)
+    grpc (1.66.0-x86_64-linux)
+      google-protobuf (>= 3.25, < 5.0)
       googleapis-common-protos-types (~> 1.0)
-    grpc-tools (1.64.3)
+    grpc-tools (1.66.0)
     method_source (1.1.0)
     os (1.1.4)
     parser (3.3.5.0)
@@ -51,7 +62,7 @@ GEM
     rspec-expectations (3.13.3)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
-    rspec-mocks (3.13.1)
+    rspec-mocks (3.13.2)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.1)
@@ -76,7 +87,7 @@ PLATFORMS
 
 DEPENDENCIES
   gauge-ruby!
-  grpc-tools (~> 1.10, >= 1.10.0, < 1.65)
+  grpc-tools (~> 1.10, >= 1.10.0, < 1.67)
   method_source
   os
   rake
diff --git a/gauge-ruby.gemspec b/gauge-ruby.gemspec
index c7adc31..97d6839 100644
--- a/gauge-ruby.gemspec
+++ b/gauge-ruby.gemspec
@@ -20,7 +20,7 @@ Gem::Specification.new do |s|
 
     s.add_runtime_dependency 'parser', '>= 3.1', '< 4.0'
     s.add_runtime_dependency 'unparser', '>= 0.6.4', '< 0.7.0'
-    s.add_runtime_dependency 'grpc', '~> 1.10', '>= 1.10.0', '< 1.65'
-    s.add_development_dependency 'grpc-tools', '~> 1.10', '>= 1.10.0', '< 1.65'
+    s.add_runtime_dependency 'grpc', '~> 1.10', '>= 1.10.0', '< 1.67'
+    s.add_development_dependency 'grpc-tools', '~> 1.10', '>= 1.10.0', '< 1.67'
     s.required_ruby_version = ">= 3.1"
 end