diff --git a/Gemfile b/Gemfile
index f4fa2c8..f09d4d6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -23,5 +23,9 @@ group :profiling do
 end
 
 gem 'sparql-client', github: 'ontoportal-lirmm/sparql-client', branch: 'development'
-gem 'faraday', '2.7.11' #unpin if we no more support ruby 2.7
 gem "rdf-raptor", github: "ruby-rdf/rdf-raptor", ref: "6392ceabf71c3233b0f7f0172f662bd4a22cd534" # use version 3.3.0 when available
+
+# to remove if no more supporting ruby 2.7
+gem 'faraday', '2.7.11' #unpin if we no more support ruby 2.7
+gem 'net-ftp'
+gem 'public_suffix', '~> 5.1.1'
diff --git a/Gemfile.lock b/Gemfile.lock
index 306c291..e966160 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -52,6 +52,7 @@ GEM
     connection_pool (2.5.0)
     cube-ruby (0.0.3)
     daemons (1.4.1)
+    date (3.4.1)
     docile (1.4.1)
     domain_name (0.6.20240107)
     eventmachine (1.2.7)
@@ -80,13 +81,18 @@ GEM
     multi_json (1.15.0)
     mustermann (3.0.3)
       ruby2_keywords (~> 0.0.1)
+    net-ftp (0.3.8)
+      net-protocol
+      time
     net-http-persistent (4.0.5)
       connection_pool (~> 2.2)
+    net-protocol (0.2.2)
+      timeout
     netrc (0.11.0)
     pry (0.15.2)
       coderay (~> 1.1)
       method_source (~> 1.0)
-    public_suffix (6.0.1)
+    public_suffix (5.1.1)
     rack (2.2.10)
     rack-accept (0.4.5)
       rack (>= 0.4)
@@ -147,6 +153,9 @@ GEM
       rack (>= 1, < 3)
     thread_safe (0.3.6)
     tilt (2.6.0)
+    time (0.4.1)
+      date
+    timeout (0.4.3)
     tzinfo (0.3.62)
     uuid (2.3.9)
       macaddr (~> 1.0)
@@ -162,7 +171,9 @@ DEPENDENCIES
   faraday (= 2.7.11)
   goo!
   minitest (< 5.0)
+  net-ftp
   pry
+  public_suffix (~> 5.1.1)
   rack-accept
   rack-post-body-to-params
   rake