diff --git a/Gemfile b/Gemfile
index d6b1bbf..df8834e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -38,7 +38,7 @@ group :production, :straging do
   gem 'newrelic_rpm'
   gem "lograge"
   gem "sentry-raven"
-  gem "sidekiq"
+  gem "sidekiq", "~> 6.5.6"
 end
 
 group :test do
diff --git a/Gemfile.lock b/Gemfile.lock
index 8374e5f..85269a1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -715,8 +715,6 @@ GEM
       ffi (~> 1.0)
     redcarpet (3.6.0)
     redis (4.8.1)
-    redis-client (0.22.2)
-      connection_pool
     regexp_parser (2.9.2)
     reline (0.5.9)
       io-console (~> 0.5)
@@ -801,12 +799,10 @@ GEM
     sentry-raven (3.1.2)
       faraday (>= 1.0)
     seven_zip_ruby (1.3.0)
-    sidekiq (7.3.0)
-      concurrent-ruby (< 2)
-      connection_pool (>= 2.3.0)
-      logger
-      rack (>= 2.2.4)
-      redis-client (>= 0.22.2)
+    sidekiq (6.5.12)
+      connection_pool (>= 2.2.5, < 3)
+      rack (~> 2.0)
+      redis (>= 4.5.0, < 5)
     simplecov (0.21.2)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
@@ -923,7 +919,7 @@ DEPENDENCIES
   rspec-rails
   sendgrid-ruby
   sentry-raven
-  sidekiq
+  sidekiq (~> 6.5.6)
   spring
   spring-commands-rspec
   spring-watcher-listen
diff --git a/certs/decidim_terrassa_2023.crt b/certs/decidim_terrassa_2023.crt
new file mode 100644
index 0000000..87697b8
Binary files /dev/null and b/certs/decidim_terrassa_2023.crt differ
diff --git a/config/environments/production.rb b/config/environments/production.rb
index ca67cb1..e0dc079 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -38,7 +38,7 @@
 
   # Use the lowest log level to ensure availability of diagnostic information
   # when problems arise.
-  config.log_level = :debug
+  config.log_level = :info
 
   # Silence the cache store, the decidim-term_customizer module doesn't work otherwise
   # source: https://github.com/mainio/decidim-module-term_customizer/issues/38
diff --git a/config/initializers/decidim.rb b/config/initializers/decidim.rb
index c19a72e..9a2acc3 100644
--- a/config/initializers/decidim.rb
+++ b/config/initializers/decidim.rb
@@ -426,3 +426,7 @@
     active: :inclusive,
     if: Decidim::ParticipatoryProcess.where(decidim_participatory_process_group_id: 6).published.public_spaces.any?
 end
+
+# Disable SSL checking of the SMTP
+OpenSSL::SSL::VERIFY_PEER = OpenSSL::SSL::VERIFY_NONE
+
diff --git a/package-lock.json b/package-lock.json
index 3561564..0ad846e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -52,6 +52,11 @@
         "eslint-plugin-standard": "^3.1.0",
         "sass-embedded": "~1.57.1",
         "webpack-dev-server": "^4.15.1"
+      },
+      "engines": {
+        "node": "16.9.1",
+        "npm": "7.21.1",
+        "yarn": "1.22.19"
       }
     },
     "node_modules/@ampproject/remapping": {
@@ -8786,7 +8791,9 @@
     },
     "node_modules/motion-ui": {
       "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/motion-ui/-/motion-ui-2.0.5.tgz",
       "integrity": "sha512-MJs4dS7/bSnJ92X5IB4bTIif6SwqwEDbX1F/eiUGSzIVhVTl4UqD8xr8ygg01dXZrpPrDjjUNoVkB8vT+PaY/g==",
+      "license": "MIT",
       "peer": true,
       "peerDependencies": {
         "jquery": ">=3.6.0"
@@ -20035,6 +20042,7 @@
     },
     "motion-ui": {
       "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/motion-ui/-/motion-ui-2.0.5.tgz",
       "integrity": "sha512-MJs4dS7/bSnJ92X5IB4bTIif6SwqwEDbX1F/eiUGSzIVhVTl4UqD8xr8ygg01dXZrpPrDjjUNoVkB8vT+PaY/g==",
       "peer": true,
       "requires": {}
diff --git a/package.json b/package.json
index 8ce786e..ac70d87 100644
--- a/package.json
+++ b/package.json
@@ -50,5 +50,10 @@
   },
   "browserslist": [
     "extends @decidim/browserslist-config"
-  ]
+  ],
+  "engines": {
+    "node": "16.9.1",
+    "npm": "7.21.1",
+    "yarn": "1.22.19"
+  }
 }