diff --git a/.buildpacks b/.buildpacks
new file mode 100644
index 0000000000000000000000000000000000000000..90d09c3c35cd431d924e95b63bb402a7319aa3cc
--- /dev/null
+++ b/.buildpacks
@@ -0,0 +1,2 @@
+https://github.com/Scalingo/ffmpeg-buildpack.git
+https://github.com/Scalingo/ruby-buildpack.git
diff --git a/.ruby-version b/.ruby-version
index 2c9b4ef42ecbc54d7c946c9ad26424b89d1f792d..a4dd9dba4fbfc56b9de647bc31ed848d9f65885f 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.7.3
+2.7.4
diff --git a/Gemfile b/Gemfile
index 1598253f2468fbcd45295f0d2d67e40de3a66826..686d08ea19e67c4883dfe42a244f7371242e57c5 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,7 @@
 source 'https://rubygems.org'
 git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
-ruby '2.7.3'
+ruby '2.7.4'
 
 # Infrastructure
 gem 'pg', '~> 1.1'
diff --git a/Gemfile.lock b/Gemfile.lock
index 23c69f3b2c2b6286d32b062f797f24cba1f9abba..d5859fc7fdbfadb71a72593f049d7da582395bf1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -65,27 +65,27 @@ GEM
     annotate (3.1.1)
       activerecord (>= 3.2, < 7.0)
       rake (>= 10.4, < 14.0)
-    autoprefixer-rails (10.3.1.0)
+    autoprefixer-rails (10.3.3.0)
       execjs (~> 2)
-    aws-eventstream (1.1.1)
-    aws-partitions (1.492.0)
-    aws-sdk-core (3.119.1)
+    aws-eventstream (1.2.0)
+    aws-partitions (1.503.0)
+    aws-sdk-core (3.121.0)
       aws-eventstream (~> 1, >= 1.0.2)
       aws-partitions (~> 1, >= 1.239.0)
       aws-sigv4 (~> 1.1)
       jmespath (~> 1.0)
-    aws-sdk-kms (1.47.0)
-      aws-sdk-core (~> 3, >= 3.119.0)
+    aws-sdk-kms (1.48.0)
+      aws-sdk-core (~> 3, >= 3.120.0)
       aws-sigv4 (~> 1.1)
-    aws-sdk-s3 (1.100.0)
-      aws-sdk-core (~> 3, >= 3.119.0)
+    aws-sdk-s3 (1.103.0)
+      aws-sdk-core (~> 3, >= 3.120.0)
       aws-sdk-kms (~> 1)
-      aws-sigv4 (~> 1.1)
-    aws-sigv4 (1.2.4)
+      aws-sigv4 (~> 1.4)
+    aws-sigv4 (1.4.0)
       aws-eventstream (~> 1, >= 1.0.2)
     bcrypt (3.1.16)
     bindex (0.8.1)
-    bootsnap (1.8.1)
+    bootsnap (1.9.1)
       msgpack (~> 1.0)
     bootstrap (5.1.0)
       autoprefixer-rails (>= 9.1.0)
@@ -137,7 +137,7 @@ GEM
       activesupport (>= 3.0.0)
     erubi (1.10.0)
     execjs (2.8.1)
-    faraday (1.7.1)
+    faraday (1.8.0)
       faraday-em_http (~> 1.0)
       faraday-em_synchrony (~> 1.0)
       faraday-excon (~> 1.1)
@@ -156,7 +156,7 @@ GEM
     faraday-net_http_persistent (1.2.0)
     faraday-patron (1.0.0)
     faraday-rack (1.0.0)
-    ffi (1.15.3)
+    ffi (1.15.4)
     front_matter_parser (1.0.1)
     globalid (0.5.2)
       activesupport (>= 5.0)
@@ -173,7 +173,7 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    kamifusen (1.4)
+    kamifusen (1.9)
       image_processing
       rails
     kaminari (1.2.1)
@@ -196,7 +196,7 @@ GEM
       nokogiri (>= 1.5.9)
     mail (2.7.1)
       mini_mime (>= 0.1.1)
-    marcel (1.0.1)
+    marcel (1.0.2)
     method_source (1.0.0)
     mini_magick (4.11.0)
     mini_mime (1.1.1)
@@ -217,7 +217,7 @@ GEM
     pg (1.2.3)
     popper_js (2.9.3)
     public_suffix (4.0.6)
-    puma (5.4.0)
+    puma (5.5.0)
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)
@@ -295,7 +295,7 @@ GEM
     sixarm_ruby_unaccent (1.2.0)
     sort_alphabetical (1.1.0)
       unicode_utils (>= 1.2.2)
-    spring (2.1.1)
+    spring (3.0.0)
     sprockets (4.0.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
@@ -368,7 +368,7 @@ DEPENDENCIES
   webdrivers
 
 RUBY VERSION
-   ruby 2.7.3p183
+   ruby 2.7.4p191
 
 BUNDLED WITH
    2.1.4