diff --git a/.gitlab/ci/integration/es.yml b/.gitlab/ci/integration/es.yml
index 80b73d9b8..6b0675201 100644
--- a/.gitlab/ci/integration/es.yml
+++ b/.gitlab/ci/integration/es.yml
@@ -13,26 +13,14 @@
     - bundle exec rspec --tag searchindex --tag ~type:system
     - bundle exec rails test test/integration/report_test.rb
 
-es:6:
-  <<: *template_integration_es
-  variables:
-    ELASTICSEARCH_TAG: '6'
-    RAILS_ENV: "test"
-
-es:6.5:
-  <<: *template_integration_es
-  variables:
-    ELASTICSEARCH_TAG: '6.5'
-    RAILS_ENV: "test"
-
 es:7:
   <<: *template_integration_es
   variables:
     ELASTICSEARCH_TAG: '7'
     RAILS_ENV: "test"
 
-es:7.0:
+es:7.8:
   <<: *template_integration_es
   variables:
-    ELASTICSEARCH_TAG: '7.0'
+    ELASTICSEARCH_TAG: '7.8.1'
     RAILS_ENV: "test"
diff --git a/lib/search_index_backend.rb b/lib/search_index_backend.rb
index 159d0de8c..9275a910f 100644
--- a/lib/search_index_backend.rb
+++ b/lib/search_index_backend.rb
@@ -20,10 +20,12 @@ info about used search index machine
       installed_version = response.data.dig('version', 'number')
       raise "Unable to get elasticsearch version from response: #{response.inspect}" if installed_version.blank?
 
-      version_supported = Gem::Version.new(installed_version) < Gem::Version.new('8')
+      installed_version_parsed = Gem::Version.new(installed_version)
+
+      version_supported = installed_version_parsed < Gem::Version.new('8')
       raise "Version #{installed_version} of configured elasticsearch is not supported." if !version_supported
 
-      version_supported = Gem::Version.new(installed_version) > Gem::Version.new('2.3')
+      version_supported = installed_version_parsed >= Gem::Version.new('7.8')
       raise "Version #{installed_version} of configured elasticsearch is not supported." if !version_supported
 
       return response.data