diff --git a/app/lib/rate_limiter.rb b/app/lib/rate_limiter.rb
index 4a0b35b081..ff105443e8 100644
--- a/app/lib/rate_limiter.rb
+++ b/app/lib/rate_limiter.rb
@@ -14,6 +14,11 @@ class RateLimiter
       period: 3.hours.freeze,
     }.freeze,
 
+    emoji_reactions: {
+      limit: 300,
+      period: 3.hours.freeze,
+    }.freeze,
+
     reports: {
       limit: 400,
       period: 24.hours.freeze,
diff --git a/app/models/emoji_reaction.rb b/app/models/emoji_reaction.rb
index 2534cfebe2..50da1a083f 100644
--- a/app/models/emoji_reaction.rb
+++ b/app/models/emoji_reaction.rb
@@ -16,11 +16,14 @@
 
 class EmojiReaction < ApplicationRecord
   include Paginable
+  include RateLimitable
 
   EMOJI_REACTION_LIMIT = 32_767
   EMOJI_REACTION_PER_ACCOUNT_LIMIT = ENV.fetch('EMOJI_REACTION_PER_ACCOUNT_LIMIT', 3).to_i
   EMOJI_REACTION_PER_REMOTE_ACCOUNT_LIMIT = ENV.fetch('EMOJI_REACTION_PER_REMOTE_ACCOUNT_LIMIT', 3).to_i
 
+  rate_limit by: :account, family: :emoji_reactions
+
   update_index('statuses', :status)
 
   scope :local, -> { where(uri: nil) }