diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1bb5fbb..d3f210e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# Unreleased
+
+* Allow setting of Redis SSL `verify_mode` to none via environment variable
+
 # 9.0.0
 
 * Switch from using `redis` gem to `redis-client`
diff --git a/lib/govuk_sidekiq/railtie.rb b/lib/govuk_sidekiq/railtie.rb
index ae63c8c..b42332b 100644
--- a/lib/govuk_sidekiq/railtie.rb
+++ b/lib/govuk_sidekiq/railtie.rb
@@ -3,9 +3,13 @@
 module GovukSidekiq
   class Railtie < Rails::Railtie
     initializer "govuk_sidekiq.initialize_sidekiq" do
-      SidekiqInitializer.setup_sidekiq(
-        { url: ENV.fetch("REDIS_URL", "redis://127.0.0.1:6379") },
-      )
+      redis_options = { url: ENV.fetch("REDIS_URL", "redis://127.0.0.1:6379") }
+
+      if ENV["REDIS_SSL_VERIFY_NONE"] == "true"
+        redis_options[:ssl_params] = { verify_mode: OpenSSL::SSL::VERIFY_NONE }
+      end
+
+      SidekiqInitializer.setup_sidekiq(redis_options)
     end
 
     rake_tasks do
diff --git a/spec/govuk_sidekiq/railtie_spec.rb b/spec/govuk_sidekiq/railtie_spec.rb
index 0b7afcc..43880fd 100644
--- a/spec/govuk_sidekiq/railtie_spec.rb
+++ b/spec/govuk_sidekiq/railtie_spec.rb
@@ -25,4 +25,14 @@
       described_class.initializers.first.run(app)
     end
   end
+
+  it "can set Redis SSL verify_mode to none via an env var" do
+    ClimateControl.modify REDIS_SSL_VERIFY_NONE: "true" do
+      expect(GovukSidekiq::SidekiqInitializer)
+        .to receive(:setup_sidekiq)
+        .with(default_redis_configuration.merge({ ssl_params: { verify_mode: OpenSSL::SSL::VERIFY_NONE } }))
+
+      described_class.initializers.first.run(app)
+    end
+  end
 end