diff --git a/airbrake.gemspec b/airbrake.gemspec
index af664e7b3..954916581 100644
--- a/airbrake.gemspec
+++ b/airbrake.gemspec
@@ -31,7 +31,7 @@ DESC
 
   s.required_ruby_version = '>= 2.0'
 
-  s.add_dependency 'airbrake-ruby', '~> 2.5'
+  s.add_dependency 'airbrake-ruby', '~> 2.10'
 
   s.add_development_dependency 'rspec', '~> 3'
   s.add_development_dependency 'rspec-wait', '~> 0'
diff --git a/lib/airbrake/rack/context_filter.rb b/lib/airbrake/rack/context_filter.rb
index 45935aa73..f74f0907c 100644
--- a/lib/airbrake/rack/context_filter.rb
+++ b/lib/airbrake/rack/context_filter.rb
@@ -10,11 +10,14 @@ class ContextFilter
       def initialize
         @framework_version =
           if defined?(::Rails) && ::Rails.respond_to?(:version)
-            "Rails/#{::Rails.version}"
+            { 'rails' => ::Rails.version }
           elsif defined?(::Sinatra)
-            "Sinatra/#{Sinatra::VERSION}"
+            { 'sinatra' => Sinatra::VERSION }
           else
-            "Rack.version/#{::Rack.version} Rack.release/#{::Rack.release}"
+            {
+              'rack_version' => ::Rack.version,
+              'rack_release' => ::Rack.release
+            }
           end.freeze
         @weight = 99
       end
@@ -44,10 +47,10 @@ def call(notice)
       private
 
       def add_framework_version(context)
-        if context.key?(:version)
-          context[:version] += " #{@framework_version}"
+        if context.key?(:versions)
+          context[:versions].merge!(@framework_version)
         else
-          context[:version] = @framework_version
+          context[:versions] = @framework_version
         end
       end
     end
diff --git a/spec/integration/rack/rack_spec.rb b/spec/integration/rack/rack_spec.rb
index 01829b0ef..cdd2dd5a5 100644
--- a/spec/integration/rack/rack_spec.rb
+++ b/spec/integration/rack/rack_spec.rb
@@ -10,7 +10,7 @@
     it "includes version" do
       get '/crash'
       wait_for_a_request_with_body(
-        /"context":{.*"version":"1.2.3 Rack\.version.+Rack\.release/
+        /"context":{.*"versions":{"rack_version":"\d\..+","rack_release":"\d\..+"}/
       )
     end
   end
diff --git a/spec/integration/rails/rails_spec.rb b/spec/integration/rails/rails_spec.rb
index 802fd10cc..42cf18bd5 100644
--- a/spec/integration/rails/rails_spec.rb
+++ b/spec/integration/rails/rails_spec.rb
@@ -53,7 +53,7 @@
     end
 
     it "includes version" do
-      wait_for_a_request_with_body(/"context":{.*"version":"1.2.3 Rails/)
+      wait_for_a_request_with_body(/"context":{.*"versions":{"rails":"\d\./)
     end
 
     it "includes session" do
diff --git a/spec/integration/sinatra/sinatra_spec.rb b/spec/integration/sinatra/sinatra_spec.rb
index 3487c0691..d5bc06437 100644
--- a/spec/integration/sinatra/sinatra_spec.rb
+++ b/spec/integration/sinatra/sinatra_spec.rb
@@ -15,7 +15,7 @@
   describe "context payload" do
     it "includes version" do
       get '/crash'
-      wait_for_a_request_with_body(/"context":{.*"version":"1.2.3 Sinatra/)
+      wait_for_a_request_with_body(/"context":{.*"versions":{"sinatra":"\d\./)
     end
   end
 
diff --git a/spec/unit/rack/context_filter_spec.rb b/spec/unit/rack/context_filter_spec.rb
index 5a021dc3a..4caac1aa5 100644
--- a/spec/unit/rack/context_filter_spec.rb
+++ b/spec/unit/rack/context_filter_spec.rb
@@ -18,8 +18,10 @@ def env_for(url, opts = {})
 
   it "adds framework version to the context" do
     subject.call(notice)
-    expect(notice[:context][:version]).
-      to match(/\d.\d.\d Rack\.version.+Rack\.release/)
+    expect(notice[:context][:versions]).to include(
+      'rack_version' => a_string_matching(/\d.\d/),
+      'rack_release' => a_string_matching(/\d.\d\.\d/)
+    )
   end
 
   context "when URL is present" do
diff --git a/spec/unit/rack/middleware_spec.rb b/spec/unit/rack/middleware_spec.rb
index 83d7a7acb..e947f64c9 100644
--- a/spec/unit/rack/middleware_spec.rb
+++ b/spec/unit/rack/middleware_spec.rb
@@ -76,7 +76,7 @@ def wait_for_a_request_with_body(body)
             to raise_error(AirbrakeTestError)
 
           wait_for_a_request_with_body(
-            %r("context":{.*"version":"1.2.3 (Rails|Sinatra|Rack\.version)/.+".+})
+            /"context":{.*"versions":{"(rails|sinatra|rack_version)"/
           )
         end
       end