diff --git a/site-cookbooks/kosmos-mastodon/recipes/default.rb b/site-cookbooks/kosmos-mastodon/recipes/default.rb
index 801e5ae..5fb473b 100644
--- a/site-cookbooks/kosmos-mastodon/recipes/default.rb
+++ b/site-cookbooks/kosmos-mastodon/recipes/default.rb
@@ -42,7 +42,7 @@ user "mastodon" do
 end
 
 package %w(imagemagick ffmpeg libxml2-dev libxslt1-dev file git curl pkg-config
-           libprotobuf-dev protobuf-compiler libidn11 libidn11-dev)
+           libprotobuf-dev protobuf-compiler libidn11 libidn11-dev libjemalloc1)
 
 node_package "yarn" do
   version "1.3.2"
diff --git a/site-cookbooks/kosmos-mastodon/templates/default/mastodon-sidekiq.systemd.service.erb b/site-cookbooks/kosmos-mastodon/templates/default/mastodon-sidekiq.systemd.service.erb
index 6a00a30..02c97c3 100644
--- a/site-cookbooks/kosmos-mastodon/templates/default/mastodon-sidekiq.systemd.service.erb
+++ b/site-cookbooks/kosmos-mastodon/templates/default/mastodon-sidekiq.systemd.service.erb
@@ -9,6 +9,7 @@ User=<%= @user %>
 WorkingDirectory=<%= @app_dir %>
 Environment="RAILS_ENV=production"
 Environment="DB_POOL=50"
+Environment="LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.1"
 ExecStart=<%= @bundle_path %> exec sidekiq -c 5 -q default -q mailers -q pull -q push
 TimeoutSec=15
 Restart=always
diff --git a/site-cookbooks/kosmos-mastodon/templates/default/mastodon-web.systemd.service.erb b/site-cookbooks/kosmos-mastodon/templates/default/mastodon-web.systemd.service.erb
index 5e8e5e9..315c216 100644
--- a/site-cookbooks/kosmos-mastodon/templates/default/mastodon-web.systemd.service.erb
+++ b/site-cookbooks/kosmos-mastodon/templates/default/mastodon-web.systemd.service.erb
@@ -12,6 +12,7 @@ PIDFile=<%= @app_dir %>/tmp/puma.pid
 WorkingDirectory=<%= @app_dir %>
 Environment="RAILS_ENV=production"
 Environment="PORT=3000"
+Environment="LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.1"
 ExecStart=<%= @bundle_path %> exec puma -C config/puma.rb --pidfile <%= @app_dir %>/tmp/puma.pid
 ExecStop=<%= @bundle_path %> exec puma -C config/puma.rb --pidfile <%= @app_dir %>/tmp/puma.pid stop
 ExecReload=<%= @bundle_path %> exec pumactl -F config/puma.rb --pidfile <%= @app_dir %>/tmp/puma.pid phased-restart