diff --git a/Gemfile b/Gemfile
index 8cc430e0b..9e05e041d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -184,3 +184,5 @@ group :test do
   # Testing framework for Rails
   gem 'rspec-rails'
 end
+
+gem 'concurrent-ruby', '1.3.4'
diff --git a/Gemfile.lock b/Gemfile.lock
index 73328d841..a7cc34ebb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,11 +1,11 @@
 GIT
   remote: https://github.com/ontoportal-lirmm/ontologies_api_ruby_client.git
-  revision: 7423b46ff6fa7e5ef0f1d36548f7c04466939f71
+  revision: f5b82f304abaf6f0a4ee671729120973084189e5
   branch: development
   specs:
     ontologies_api_client (2.2.0)
       activesupport (~> 7.0.4)
-      excon
+      excon (= 0.112.0)
       faraday
       faraday-excon (~> 2.0.0)
       faraday-multipart
@@ -94,7 +94,7 @@ GEM
       execjs (~> 2)
     base64 (0.2.0)
     bcrypt_pbkdf (1.1.1)
-    bigdecimal (3.1.8)
+    bigdecimal (3.1.9)
     bindata (2.5.0)
     bindex (0.8.1)
     bootsnap (1.18.4)
@@ -107,7 +107,7 @@ GEM
     bugsnag (6.27.1)
       concurrent-ruby (~> 1.0)
     builder (3.3.0)
-    capistrano (3.19.1)
+    capistrano (3.19.2)
       airbrussh (>= 1.0.0)
       i18n
       rake (>= 10.0.0)
@@ -118,7 +118,7 @@ GEM
       capistrano (~> 3.0)
     capistrano-passenger (0.2.1)
       capistrano (~> 3.0)
-    capistrano-rails (1.6.3)
+    capistrano-rails (1.7.0)
       capistrano (~> 3.1)
       capistrano-bundler (>= 1.1, < 3)
     capistrano-yarn (2.0.2)
@@ -147,18 +147,18 @@ GEM
     crass (1.0.6)
     css_parser (1.17.1)
       addressable
-    csv (3.3.0)
+    csv (3.3.2)
     dalli (3.2.8)
-    date (3.3.4)
-    debug (1.9.2)
+    date (3.4.1)
+    debug (1.10.0)
       irb (~> 1.10)
       reline (>= 0.3.8)
-    deepl-rb (3.0.2)
+    deepl-rb (3.2.0)
     diff-lcs (1.5.1)
     docile (1.4.1)
     domain_name (0.6.20240107)
     ed25519 (1.3.0)
-    erubi (1.13.0)
+    erubi (1.13.1)
     erubis (2.7.0)
     excon (0.112.0)
     execjs (2.10.0)
@@ -170,8 +170,8 @@ GEM
       faraday (~> 2.0.0.alpha.pre.2)
     faraday-follow_redirects (0.3.0)
       faraday (>= 1, < 3)
-    faraday-multipart (1.0.4)
-      multipart-post (~> 2)
+    faraday-multipart (1.1.0)
+      multipart-post (~> 2.0)
     faraday-net_http (2.1.0)
     ffi (1.16.3)
     fiber-storage (1.0.0)
@@ -179,10 +179,11 @@ GEM
       sass-rails
     globalid (1.2.1)
       activesupport (>= 6.1)
-    graphql (2.3.19)
+    graphql (2.4.9)
       base64
       fiber-storage
-    graphql-client (0.23.0)
+      logger
+    graphql-client (0.25.0)
       activesupport (>= 3.0)
       graphql (>= 1.13.0)
     haml (5.2.2)
@@ -193,7 +194,7 @@ GEM
       activesupport (>= 5.1)
       haml (>= 4.0.6)
       railties (>= 5.1)
-    hashdiff (1.1.1)
+    hashdiff (1.1.2)
     hashie (5.0.0)
     highline (2.1.0)
     html2haml (2.3.0)
@@ -204,9 +205,9 @@ GEM
     htmlbeautifier (1.4.3)
     htmlentities (4.3.4)
     http-accept (1.7.0)
-    http-cookie (1.0.7)
+    http-cookie (1.0.8)
       domain_name (~> 0.5)
-    i18n (1.14.6)
+    i18n (1.14.7)
       concurrent-ruby (~> 1.0)
     i18n-tasks (0.9.37)
       activesupport (>= 4.0.2)
@@ -227,8 +228,9 @@ GEM
     inline_svg (1.10.0)
       activesupport (>= 3.0)
       nokogiri (>= 1.6)
-    io-console (0.7.2)
-    irb (1.14.1)
+    io-console (0.8.0)
+    irb (1.15.1)
+      pp (>= 0.6.0)
       rdoc (>= 4.0.0)
       reline (>= 0.4.2)
     iso-639 (0.3.8)
@@ -241,7 +243,7 @@ GEM
       railties (>= 3.2.16)
     jsbundling-rails (1.3.1)
       railties (>= 6.0.0)
-    json (2.7.4)
+    json (2.9.1)
     json-jwt (1.16.7)
       activesupport (>= 4.2)
       aes_key_wrap
@@ -249,12 +251,13 @@ GEM
       bindata
       faraday (~> 2.0)
       faraday-follow_redirects
-    jwt (2.9.3)
+    jwt (2.10.1)
       base64
-    language_server-protocol (3.17.0.3)
-    launchy (3.0.1)
+    language_server-protocol (3.17.0.4)
+    launchy (3.1.0)
       addressable (~> 2.8)
       childprocess (~> 5.0)
+      logger (~> 1.6)
     letter_opener (1.10.0)
       launchy (>= 2.2, < 4)
     letter_opener_web (2.0.0)
@@ -265,8 +268,8 @@ GEM
     listen (3.9.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
-    logger (1.6.1)
-    loofah (2.23.1)
+    logger (1.6.5)
+    loofah (2.24.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
     lookbook (1.5.5)
@@ -294,10 +297,10 @@ GEM
     mime-types (3.6.0)
       logger
       mime-types-data (~> 3.2015)
-    mime-types-data (3.2024.1001)
+    mime-types-data (3.2025.0107)
     mini_mime (1.1.5)
-    minitest (5.25.1)
-    msgpack (1.7.3)
+    minitest (5.25.4)
+    msgpack (1.7.5)
     multi_json (1.15.0)
     multi_xml (0.6.0)
     multipart-post (2.4.1)
@@ -307,14 +310,14 @@ GEM
       time
     net-http (0.3.2)
       uri
-    net-imap (0.4.17)
+    net-imap (0.4.18)
       date
       net-protocol
     net-pop (0.1.2)
       net-protocol
     net-protocol (0.2.2)
       timeout
-    net-scp (4.0.0)
+    net-scp (4.1.0)
       net-ssh (>= 2.6.5, < 8.0.0)
     net-sftp (4.0.0)
       net-ssh (>= 5.0.0, < 8.0.0)
@@ -322,9 +325,9 @@ GEM
       net-protocol
     net-ssh (7.3.0)
     netrc (0.11.0)
-    newrelic_rpm (9.14.0)
-    nio4r (2.7.3)
-    nokogiri (1.15.6-x86_64-linux)
+    newrelic_rpm (9.17.0)
+    nio4r (2.7.4)
+    nokogiri (1.15.7-x86_64-linux)
       racc (~> 1.4)
     oauth2 (2.0.9)
       faraday (>= 0.17.3, < 3.0)
@@ -333,7 +336,7 @@ GEM
       rack (>= 1.2, < 4)
       snaky_hash (~> 2.0)
       version_gem (~> 1.1)
-    oj (3.16.6)
+    oj (3.16.9)
       bigdecimal (>= 3.0)
       ostruct (>= 0.2)
     omniauth (2.1.2)
@@ -343,8 +346,8 @@ GEM
     omniauth-github (2.0.1)
       omniauth (~> 2.0)
       omniauth-oauth2 (~> 1.8)
-    omniauth-google-oauth2 (1.2.0)
-      jwt (>= 2.9)
+    omniauth-google-oauth2 (1.2.1)
+      jwt (>= 2.9.2)
       oauth2 (~> 2.0)
       omniauth (~> 2.0)
       omniauth-oauth2 (~> 1.8)
@@ -362,16 +365,20 @@ GEM
     omniauth-rails_csrf_protection (1.0.2)
       actionpack (>= 4.2)
       omniauth (~> 2.0)
-    ostruct (0.6.0)
+    ostruct (0.6.1)
     parallel (1.26.3)
-    parser (3.3.5.0)
+    parser (3.3.7.0)
       ast (~> 2.4.1)
       racc
     popper_js (1.16.1)
-    pry (0.14.2)
+    pp (0.6.2)
+      prettyprint
+    prettyprint (0.2.0)
+    pry (0.15.2)
       coderay (~> 1.1)
       method_source (~> 1.0)
-    psych (5.1.2)
+    psych (5.2.3)
+      date
       stringio
     public_suffix (5.1.1)
     puma (5.6.9)
@@ -381,7 +388,7 @@ GEM
     rack-protection (3.2.0)
       base64 (>= 0.1.0)
       rack (~> 2.2, >= 2.2.4)
-    rack-test (2.1.0)
+    rack-test (2.2.0)
       rack (>= 1.3)
     rails (7.0.4)
       actioncable (= 7.0.4)
@@ -401,10 +408,10 @@ GEM
       activesupport (>= 5.0.0)
       minitest
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.6.0)
+    rails-html-sanitizer (1.6.2)
       loofah (~> 2.21)
-      nokogiri (~> 1.14)
-    rails-i18n (7.0.9)
+      nokogiri (>= 1.15.7, != 1.16.7, != 1.16.6, != 1.16.5, != 1.16.4, != 1.16.3, != 1.16.2, != 1.16.1, != 1.16.0.rc1, != 1.16.0)
+    rails-i18n (7.0.10)
       i18n (>= 0.7, < 2)
       railties (>= 6.0.0, < 8)
     railties (7.0.4)
@@ -419,13 +426,13 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.11.1)
       ffi (~> 1.0)
-    rdoc (6.7.0)
+    rdoc (6.11.0)
       psych (>= 4.0.0)
     recaptcha (5.9.0)
       json
     redcarpet (3.6.0)
-    regexp_parser (2.9.2)
-    reline (0.5.10)
+    regexp_parser (2.10.0)
+    reline (0.6.0)
       io-console (~> 0.5)
     request_store (1.7.0)
       rack (>= 1.4)
@@ -434,8 +441,8 @@ GEM
       http-cookie (>= 1.0.2, < 2.0)
       mime-types (>= 1.16, < 4.0)
       netrc (~> 0.8)
-    rexml (3.3.9)
-    rouge (4.4.0)
+    rexml (3.4.0)
+    rouge (4.5.1)
     rspec-core (3.13.2)
       rspec-support (~> 3.13.0)
     rspec-expectations (3.13.3)
@@ -444,7 +451,7 @@ GEM
     rspec-mocks (3.13.2)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
-    rspec-rails (7.0.1)
+    rspec-rails (7.1.0)
       actionpack (>= 7.0)
       activesupport (>= 7.0)
       railties (>= 7.0)
@@ -452,18 +459,18 @@ GEM
       rspec-expectations (~> 3.13)
       rspec-mocks (~> 3.13)
       rspec-support (~> 3.13)
-    rspec-support (3.13.1)
-    rubocop (1.67.0)
+    rspec-support (3.13.2)
+    rubocop (1.71.2)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
       parser (>= 3.3.0.2)
       rainbow (>= 2.2.2, < 4.0)
-      regexp_parser (>= 2.4, < 3.0)
-      rubocop-ast (>= 1.32.2, < 2.0)
+      regexp_parser (>= 2.9.3, < 3.0)
+      rubocop-ast (>= 1.38.0, < 2.0)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (>= 2.4.0, < 3.0)
-    rubocop-ast (1.32.3)
+      unicode-display_width (>= 2.4.0, < 4.0)
+    rubocop-ast (1.38.0)
       parser (>= 3.3.1.0)
     ruby-progressbar (1.13.0)
     ruby2_keywords (0.0.5)
@@ -471,7 +478,7 @@ GEM
     ruby_parser (3.21.1)
       racc (~> 1.5)
       sexp_processor (~> 4.16)
-    rubyzip (2.3.2)
+    rubyzip (2.4.1)
     sass-rails (6.0.0)
       sassc-rails (~> 2.1, >= 2.1.1)
     sassc (2.4.0)
@@ -486,7 +493,7 @@ GEM
       rexml (~> 3.2, >= 3.2.5)
       rubyzip (>= 1.2.2, < 3.0)
       websocket (~> 1.0)
-    sexp_processor (4.17.2)
+    sexp_processor (4.17.3)
     simplecov (0.22.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
@@ -516,25 +523,27 @@ GEM
     stimulus-rails (1.3.4)
       railties (>= 6.0.0)
     string-similarity (2.1.0)
-    stringio (3.1.1)
+    stringio (3.1.2)
     temple (0.10.3)
-    terminal-table (3.0.2)
-      unicode-display_width (>= 1.1.1, < 3)
-    terser (1.2.4)
+    terminal-table (4.0.0)
+      unicode-display_width (>= 1.1.1, < 4)
+    terser (1.2.5)
       execjs (>= 0.3.0, < 3)
     thor (1.3.2)
-    tilt (2.4.0)
-    time (0.4.0)
+    tilt (2.6.0)
+    time (0.4.1)
       date
-    timeout (0.4.1)
+    timeout (0.4.3)
     turbo-rails (2.0.11)
       actionpack (>= 6.0.0)
       railties (>= 6.0.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     unaccent (0.4.0)
-    unicode-display_width (2.6.0)
-    uri (0.13.1)
+    unicode-display_width (3.1.4)
+      unicode-emoji (~> 4.0, >= 4.0.4)
+    unicode-emoji (4.0.4)
+    uri (1.0.2)
     version_gem (1.1.4)
     view_component (2.83.0)
       activesupport (>= 5.2.0, < 8.0)
@@ -550,7 +559,8 @@ GEM
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)
     websocket (1.2.11)
-    websocket-driver (0.7.6)
+    websocket-driver (0.7.7)
+      base64
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
     will_paginate (3.3.1)
@@ -578,6 +588,7 @@ DEPENDENCIES
   capybara
   chart-js-rails
   color (~> 1.8)
+  concurrent-ruby (= 1.3.4)
   countries (~> 5.7)
   dalli
   debug
diff --git a/app/controllers/concepts_controller.rb b/app/controllers/concepts_controller.rb
index 3d4923296..09b928724 100644
--- a/app/controllers/concepts_controller.rb
+++ b/app/controllers/concepts_controller.rb
@@ -23,7 +23,7 @@ def show
     redirect_to(ontology_path(id: params[:ontology], p: 'classes', conceptid: params[:id], lang: request_lang)) and return unless turbo_frame_request?
 
     @submission = get_ontology_submission_ready(@ontology)
-    @concept = @ontology.explore.single_class({full: true, language: request_lang}, params[:id])
+    @concept = @ontology.explore.single_class({ full: true, language: request_lang }, params[:id])
     @instances_concept_id = @concept.id
 
     concept_not_found(params[:id]) if @concept.nil?
@@ -40,22 +40,21 @@ def index
       return
     end
 
-    # Note that find_by_acronym includes views by default
-    @ontology = LinkedData::Client::Models::Ontology.find_by_acronym(params[:ontology]).first
-
-    @submission = @ontology.explore.latest_submission(include:'uriRegexPattern,preferredNamespaceUri')
-
-    @concept = @ontology.explore.single_class({dispay: 'prefLabel'}, params[:id])
-
-    concept_not_found(params[:id]) if @concept.nil?
+    @submission = LinkedData::Client::Models::Ontology.explore(params[:ontology])
+                                                      .latest_submission
+                                                      .get(include: 'uriRegexPattern,preferredNamespaceUri')
     @schemes = params[:concept_schemes].split(',')
 
-    @concept.children = @concept.explore.children(pagesize: 750, concept_schemes: Array(@schemes).join(','), language: request_lang, display: 'prefLabel,obsolete,hasChildren').collection || []
+    @concept = LinkedData::Client::Models::Class.new(values: { id: params[:id] })
 
+    @concept.children = LinkedData::Client::Models::Ontology.explore(params[:ontology])
+                                                            .classes(params[:id])
+                                                            .children
+                                                            .get(pagesize: 750, concept_schemes: Array(@schemes).join(','), language: request_lang, display: 'prefLabel,obsolete,hasChildren').collection || []
     render turbo_stream: [
       replace(helpers.child_id(@concept) + '_open_link') { TreeLinkComponent.tree_close_icon },
       replace(helpers.child_id(@concept) + '_childs') do
-        helpers.concepts_tree_component(@concept, @concept, @ontology.acronym, Array(@schemes), request_lang, sub_tree: true, submission: @submission)
+        helpers.concepts_tree_component(@concept, @concept, params[:ontology], Array(@schemes), request_lang, sub_tree: true, submission: @submission)
       end
     ]
   end
@@ -84,11 +83,11 @@ def show_definition
 
   def show_tree
     @ontology = LinkedData::Client::Models::Ontology.find_by_acronym(params[:ontology]).first
-    @submission = @ontology.explore.latest_submission(include:'uriRegexPattern,preferredNamespaceUri')
+    @submission = @ontology.explore.latest_submission(include: 'uriRegexPattern,preferredNamespaceUri')
     if @ontology.nil? || @ontology.errors
       ontology_not_found(params[:ontology])
     else
-      get_class(params) #application_controller
+      get_class(params) # application_controller
 
       not_found(t('concepts.missing_roots')) if @root.nil?
 
@@ -109,8 +108,8 @@ def show_date_sorted_list
       auto_click = page.to_s.eql?('1')
       params = {
         page: page,
-        sortby:'modified,created',
-        order:'desc,desc',
+        sortby: 'modified,created',
+        order: 'desc,desc',
         display: 'prefLabel,modified,created',
         language: request_lang
       }
@@ -142,32 +141,27 @@ def details
     @ontology = LinkedData::Client::Models::Ontology.find_by_acronym(params[:ontology]).first
     ontology_not_found(params[:ontology]) if @ontology.nil?
 
-    @concept = @ontology.explore.single_class({full: true}, CGI.unescape(params[:conceptid]))
+    @concept = @ontology.explore.single_class({ full: true }, CGI.unescape(params[:conceptid]))
     concept_not_found(CGI.unescape(params[:conceptid])) if @concept.nil? || @concept.errors
     @container_id = params[:modal] ? 'application_modal_content' : 'concept_details'
 
     render :partial => "details"
   end
 
-
   def biomixer
     @ontology = LinkedData::Client::Models::Ontology.find_by_acronym(params[:ontology]).first
     ontology_not_found(params[:ontology]) if @ontology.nil?
 
-    @concept = @ontology.explore.single_class({full: true}, params[:conceptid])
+    @concept = @ontology.explore.single_class({ full: true }, params[:conceptid])
     concept_not_found(params[:conceptid]) if @concept.nil?
 
     render partial: "biomixer", layout: false
   end
 
-
   private
 
-
-
-
   def filter_concept_with_no_date(concepts)
-    concepts.filter { |c| !concept_date(c).nil?}
+    concepts.filter { |c| !concept_date(c).nil? }
   end
 
   def concepts_to_years_months(concepts)
diff --git a/mise.toml b/mise.toml
new file mode 100644
index 000000000..83aa57a8d
--- /dev/null
+++ b/mise.toml
@@ -0,0 +1,2 @@
+[tools]
+ruby = "2.7.8"