diff --git a/Gemfile b/Gemfile
index 48340d6..06bd7cd 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ gem "propshaft"
 gem "pg", "~> 1.1"
 # Use the Puma web server [https://github.com/puma/puma]
 gem "puma", ">= 5.0"
-gem "rails_error_dashboard"
+gem "rails_error_dashboard", github: "j4rs/rails_error_dashboard", branch: "feature/mute-errors"
 gem "solid_queue"
 gem "mission_control-jobs"
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 233878f..cf91bf1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,3 +1,14 @@
+GIT
+  remote: https://github.com/j4rs/rails_error_dashboard.git
+  revision: 090963e11b0dc13132dae4f10170f69c2f2fa462
+  branch: feature/mute-errors
+  specs:
+    rails_error_dashboard (0.4.1)
+      concurrent-ruby (~> 1.3.0, < 1.3.7)
+      groupdate (~> 6.0)
+      pagy (~> 43.0)
+      rails (>= 7.0.0)
+
 GEM
   remote: https://rubygems.org/
   specs:
@@ -221,11 +232,6 @@ GEM
     rails-html-sanitizer (1.7.0)
       loofah (~> 2.25)
       nokogiri (>= 1.15.7, != 1.16.7, != 1.16.6, != 1.16.5, != 1.16.4, != 1.16.3, != 1.16.2, != 1.16.1, != 1.16.0.rc1, != 1.16.0)
-    rails_error_dashboard (0.4.1)
-      concurrent-ruby (~> 1.3.0, < 1.3.7)
-      groupdate (~> 6.0)
-      pagy (~> 43.0)
-      rails (>= 7.0.0)
     railties (8.1.2)
       actionpack (= 8.1.2)
       activesupport (= 8.1.2)
@@ -311,7 +317,7 @@ DEPENDENCIES
   propshaft
   puma (>= 5.0)
   rails (~> 8.1.2)
-  rails_error_dashboard
+  rails_error_dashboard!
   rspec-rails
   solid_queue
   tzinfo-data
diff --git a/app/controllers/slack_interactions_controller.rb b/app/controllers/slack_interactions_controller.rb
index f280d73..50ad10c 100644
--- a/app/controllers/slack_interactions_controller.rb
+++ b/app/controllers/slack_interactions_controller.rb
@@ -14,6 +14,8 @@ def create
     case action&.dig("action_id")
     when /^resolve_error_(\d+)$/
       resolve_error($1.to_i, payload)
+    when /^mute_error_(\d+)$/
+      mute_error($1.to_i, payload)
     else
       head :ok
     end
@@ -61,6 +63,47 @@ def resolve_error(error_id, payload)
     replace_original_message(payload, updated_blocks)
   end
 
+  def mute_error(error_id, payload)
+    error = RailsErrorDashboard::ErrorLog.find_by(id: error_id)
+
+    unless error
+      respond_to_slack(payload, "Error ##{error_id} not found.")
+      return
+    end
+
+    if error.muted?
+      respond_to_slack(payload, "Already muted.")
+      return
+    end
+
+    username = payload.dig("user", "username") || "someone"
+    RailsErrorDashboard::Commands::MuteError.call(error_id, muted_by: username, reason: "Muted from Slack")
+
+    user_mention = "@#{username}"
+
+    # Replace the Mute button with a muted label
+    original_blocks = payload.dig("message", "blocks") || []
+    updated_blocks = original_blocks.flat_map do |block|
+      if block["type"] == "actions"
+        # Keep View Source and Resolve buttons, remove Mute button
+        remaining = block["elements"]&.reject { |e| e["action_id"]&.start_with?("mute_error_") } || []
+        [
+          { type: "actions", elements: remaining },
+          {
+            type: "context",
+            elements: [
+              { type: "mrkdwn", text: ":bell_slash: *Muted* by #{user_mention}" }
+            ]
+          }
+        ]
+      else
+        [block]
+      end
+    end
+
+    replace_original_message(payload, updated_blocks)
+  end
+
   def respond_to_slack(payload, text)
     response_url = payload["response_url"]
     return head :ok unless response_url
diff --git a/config/initializers/rails_error_dashboard.rb b/config/initializers/rails_error_dashboard.rb
index f25738f..e5c0b67 100644
--- a/config/initializers/rails_error_dashboard.rb
+++ b/config/initializers/rails_error_dashboard.rb
@@ -217,6 +217,21 @@ def actions_block(error_log)
             deny: { type: "plain_text", text: "Cancel" }
           }
         }
+        block[:elements] << {
+          type: "button",
+          text: {
+            type: "plain_text",
+            text: "Mute",
+            emoji: true
+          },
+          action_id: "mute_error_#{error_log.id}",
+          confirm: {
+            title: { type: "plain_text", text: "Mute notifications?" },
+            text: { type: "mrkdwn", text: "Stop notifications for *#{error_log.error_type}*? The error will still be tracked in the dashboard." },
+            confirm: { type: "plain_text", text: "Mute" },
+            deny: { type: "plain_text", text: "Cancel" }
+          }
+        }
         block
       end
     end
diff --git a/spec/integration/mute_notification_spec.rb b/spec/integration/mute_notification_spec.rb
new file mode 100644
index 0000000..301906e
--- /dev/null
+++ b/spec/integration/mute_notification_spec.rb
@@ -0,0 +1,78 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+RSpec.describe "Muted error notification suppression", type: :request do
+  let(:token) { "test-token" }
+  let(:headers) { { "Authorization" => "Bearer #{token}", "Content-Type" => "application/json" } }
+  let(:application) { RailsErrorDashboard::Application.find_or_create_by!(name: "getonbrd") }
+
+  before do
+    allow(ENV).to receive(:fetch).and_call_original
+    allow(ENV).to receive(:fetch).with("API_BEARER_TOKEN").and_return(token)
+
+    RailsErrorDashboard.configure do |config|
+      config.enable_slack_notifications = true
+      config.slack_webhook_url = "https://hooks.slack.com/test"
+      config.notification_cooldown_minutes = 0
+      config.async_logging = false
+    end
+  end
+
+  let(:error_payload) do
+    {
+      error: {
+        error_type: "TestMuteError",
+        message: "This error should be muted",
+        severity: "error",
+        platform: "ruby",
+        backtrace: ["app/test.rb:1:in `test`"],
+        occurred_at: Time.current.iso8601
+      }
+    }
+  end
+
+  it "sends Slack notification for unmuted errors" do
+    expect(RailsErrorDashboard::SlackErrorNotificationJob).to receive(:perform_later).at_least(:once)
+
+    post "/api/v1/errors", params: error_payload.to_json, headers: headers
+    expect(response).to have_http_status(:created)
+  end
+
+  it "does NOT send Slack notification for muted errors" do
+    # Create the error first
+    post "/api/v1/errors", params: error_payload.to_json, headers: headers
+    error_log = RailsErrorDashboard::ErrorLog.last
+
+    # Mute it
+    error_log.update!(muted: true, muted_at: Time.current)
+
+    # Send the same error again — deduplication increments occurrence_count on the muted record
+    expect(RailsErrorDashboard::SlackErrorNotificationJob).not_to receive(:perform_later)
+
+    post "/api/v1/errors", params: error_payload.to_json, headers: headers
+    expect(response).to have_http_status(:created)
+
+    # Verify it was deduplicated (same record, higher count)
+    expect(error_log.reload.occurrence_count).to be >= 2
+    expect(error_log.muted).to be true
+  end
+
+  it "resumes Slack notifications after unmuting" do
+    # Create and mute the error
+    post "/api/v1/errors", params: error_payload.to_json, headers: headers
+    error_log = RailsErrorDashboard::ErrorLog.last
+    error_log.update!(muted: true, muted_at: Time.current)
+
+    # Unmute it
+    error_log.update!(muted: false, muted_at: nil)
+
+    # Resolve it so the next occurrence triggers a "reopened" notification
+    error_log.update!(resolved: true, resolved_at: Time.current)
+
+    expect(RailsErrorDashboard::SlackErrorNotificationJob).to receive(:perform_later).at_least(:once)
+
+    post "/api/v1/errors", params: error_payload.to_json, headers: headers
+    expect(response).to have_http_status(:created)
+  end
+end
diff --git a/spec/requests/slack_interactions_spec.rb b/spec/requests/slack_interactions_spec.rb
new file mode 100644
index 0000000..2fb5c6d
--- /dev/null
+++ b/spec/requests/slack_interactions_spec.rb
@@ -0,0 +1,109 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+require "net/http"
+
+RSpec.describe "Slack Interactions", type: :request do
+  let(:signing_secret) { "test-signing-secret" }
+  let(:application) { RailsErrorDashboard::Application.find_or_create_by!(name: "getonbrd") }
+
+  before do
+    allow(ENV).to receive(:[]).and_call_original
+    allow(ENV).to receive(:[]).with("SLACK_SIGNING_SECRET").and_return(signing_secret)
+    allow(RailsErrorDashboard::Commands::LogError).to receive(:call).and_return(nil)
+
+    # Stub all outbound HTTP to Slack response_url
+    allow_any_instance_of(Net::HTTP).to receive(:request).and_return(
+      instance_double(Net::HTTPSuccess, code: "200", body: "ok")
+    )
+  end
+
+  def build_body(action_id:, error_id: 1, username: "testuser")
+    payload = {
+      actions: [{ action_id: action_id }],
+      user: { username: username },
+      response_url: "https://hooks.slack.com/actions/test/response",
+      message: {
+        ts: "1234567890.123456",
+        blocks: [
+          { type: "header", text: { type: "plain_text", text: "TestError" } },
+          {
+            type: "actions",
+            elements: [
+              { url: "https://github.com/test", type: "button", text: { type: "plain_text", text: "View Source" } },
+              { action_id: "resolve_error_#{error_id}", type: "button", text: { type: "plain_text", text: "Resolve" } },
+              { action_id: "mute_error_#{error_id}", type: "button", text: { type: "plain_text", text: "Mute" } }
+            ]
+          }
+        ]
+      }
+    }
+    "payload=#{CGI.escape(payload.to_json)}"
+  end
+
+  def signed_headers(body)
+    timestamp = Time.now.to_i.to_s
+    sig_basestring = "v0:#{timestamp}:#{body}"
+    signature = "v0=#{OpenSSL::HMAC.hexdigest("SHA256", signing_secret, sig_basestring)}"
+
+    {
+      "Content-Type" => "application/x-www-form-urlencoded",
+      "X-Slack-Request-Timestamp" => timestamp,
+      "X-Slack-Signature" => signature
+    }
+  end
+
+  describe "mute action" do
+    let!(:error_log) do
+      RailsErrorDashboard::ErrorLog.create!(
+        application: application,
+        error_type: "TestError",
+        message: "test",
+        platform: "ruby",
+        occurred_at: Time.current,
+        occurrence_count: 1,
+        priority_level: 0
+      )
+    end
+
+    it "mutes the error and records who muted it" do
+      body = build_body(action_id: "mute_error_#{error_log.id}", error_id: error_log.id)
+
+      post "/slack/interactions", params: body, headers: signed_headers(body)
+
+      expect(response).to have_http_status(:ok)
+      expect(error_log.reload.muted).to be true
+      expect(error_log.muted_by).to eq("testuser")
+      expect(error_log.muted_reason).to eq("Muted from Slack")
+    end
+
+    it "responds with already muted when error is muted" do
+      error_log.update!(muted: true, muted_at: Time.current)
+      body = build_body(action_id: "mute_error_#{error_log.id}", error_id: error_log.id)
+
+      post "/slack/interactions", params: body, headers: signed_headers(body)
+
+      expect(response).to have_http_status(:ok)
+    end
+
+    it "responds with not found for invalid error" do
+      body = build_body(action_id: "mute_error_999999", error_id: 999999)
+
+      post "/slack/interactions", params: body, headers: signed_headers(body)
+
+      expect(response).to have_http_status(:ok)
+    end
+
+    it "rejects requests without valid signature" do
+      body = build_body(action_id: "mute_error_#{error_log.id}", error_id: error_log.id)
+
+      post "/slack/interactions", params: body, headers: {
+        "Content-Type" => "application/x-www-form-urlencoded",
+        "X-Slack-Request-Timestamp" => Time.now.to_i.to_s,
+        "X-Slack-Signature" => "v0=invalid"
+      }
+
+      expect(response).to have_http_status(:unauthorized)
+    end
+  end
+end