diff --git a/GITALY_SERVER_VERSION b/GITALY_SERVER_VERSION
index 3500250a4b0..bfbadb3a2ac 100644
--- a/GITALY_SERVER_VERSION
+++ b/GITALY_SERVER_VERSION
@@ -1 +1 @@
-1.21.0
+1.23.0
\ No newline at end of file
diff --git a/lib/gitlab/gitaly_client/repository_service.rb b/lib/gitlab/gitaly_client/repository_service.rb
index a7e20d9429e..a08bfd0e25b 100644
--- a/lib/gitlab/gitaly_client/repository_service.rb
+++ b/lib/gitlab/gitaly_client/repository_service.rb
@@ -324,8 +324,8 @@ module Gitlab
         GitalyClient.call(@storage, :repository_service, :search_files_by_name, request, timeout: GitalyClient.fast_timeout).flat_map(&:files)
       end
 
-      def search_files_by_content(ref, query, chunked_response: true)
-        request = Gitaly::SearchFilesByContentRequest.new(repository: @gitaly_repo, ref: ref, query: query, chunked_response: chunked_response)
+      def search_files_by_content(ref, query)
+        request = Gitaly::SearchFilesByContentRequest.new(repository: @gitaly_repo, ref: ref, query: query)
         response = GitalyClient.call(@storage, :repository_service, :search_files_by_content, request)
 
         search_results_from_response(response)
@@ -340,18 +340,11 @@ module Gitlab
         gitaly_response.each do |message|
           next if message.nil?
 
-          # Old client will ignore :chunked_response flag
-          # and return messages with `matches` key.
-          # This code path will be removed post 12.0 release
-          if message.matches.any?
-            matches += message.matches
-          else
-            current_match << message.match_data
+          current_match << message.match_data
 
-            if message.end_of_match
-              matches << current_match
-              current_match = +""
-            end
+          if message.end_of_match
+            matches << current_match
+            current_match = +""
           end
         end
 
diff --git a/spec/lib/gitlab/git/repository_spec.rb b/spec/lib/gitlab/git/repository_spec.rb
index e3dd02f1478..7e6dfa30e37 100644
--- a/spec/lib/gitlab/git/repository_spec.rb
+++ b/spec/lib/gitlab/git/repository_spec.rb
@@ -619,16 +619,6 @@ describe Gitlab::Git::Repository, :seed_helper do
         repository.search_files_by_content('search-files-by-content', 'search-files-by-content-branch')
       end
     end
-
-    it_should_behave_like 'search files by content' do
-      let(:search_results) do
-        repository.gitaly_repository_client.search_files_by_content(
-          'search-files-by-content-branch',
-          'search-files-by-content',
-          chunked_response: false
-        )
-      end
-    end
   end
 
   describe '#find_remote_root_ref' do