diff --git a/example/serverless.yml b/example/serverless.yml
index fbf53b9..7a33c46 100644
--- a/example/serverless.yml
+++ b/example/serverless.yml
@@ -33,7 +33,10 @@ functions:
       - websocket:
           route: $default
           authorizer: authorize
-      - http: GET hello
+      - http:
+          path: hello
+          method: GET
+          authorizer: authorize
       - stream:
           type: dynamodb
           arn:
diff --git a/lib/CfTemplateGenerators/ApiGateway.js b/lib/CfTemplateGenerators/ApiGateway.js
index f5b02be..4d2309f 100644
--- a/lib/CfTemplateGenerators/ApiGateway.js
+++ b/lib/CfTemplateGenerators/ApiGateway.js
@@ -42,10 +42,17 @@ function replaceV2AuthorizerUriWithAlias (apiGatewayMethod, functionAlias) {
   return newMethod
 }
 
+function replaceAuthorizerUriWithAlias (apiGatewayMethod, functionAlias) {
+  const aliasUri = buildUriForAlias(functionAlias)
+  const newMethod = _.set('Properties.AuthorizerUri', aliasUri, apiGatewayMethod)
+  return newMethod
+}
+
 const ApiGateway = {
   replaceV2IntegrationUriWithAlias,
   replaceMethodUriWithAlias,
-  replaceV2AuthorizerUriWithAlias
+  replaceV2AuthorizerUriWithAlias,
+  replaceAuthorizerUriWithAlias
 }
 
 module.exports = ApiGateway
diff --git a/serverless-plugin-canary-deployments.js b/serverless-plugin-canary-deployments.js
index d206203..2254278 100644
--- a/serverless-plugin-canary-deployments.js
+++ b/serverless-plugin-canary-deployments.js
@@ -142,6 +142,7 @@ class ServerlessCanaryDeployments {
     const replaceAliasStrategy = {
       'AWS::Lambda::EventSourceMapping': CfGenerators.lambda.replaceEventMappingFunctionWithAlias,
       'AWS::ApiGateway::Method': CfGenerators.apiGateway.replaceMethodUriWithAlias,
+      'AWS::ApiGateway::Authorizer': CfGenerators.apiGateway.replaceAuthorizerUriWithAlias,
       'AWS::ApiGatewayV2::Integration': CfGenerators.apiGateway.replaceV2IntegrationUriWithAlias,
       'AWS::ApiGatewayV2::Authorizer': CfGenerators.apiGateway.replaceV2AuthorizerUriWithAlias,
       'AWS::SNS::Topic': CfGenerators.sns.replaceTopicSubscriptionFunctionWithAlias,
@@ -162,6 +163,7 @@ class ServerlessCanaryDeployments {
 
   getEventsFor (functionName) {
     const apiGatewayMethods = this.getApiGatewayMethodsFor(functionName)
+    const apiGatewayAuthorizers = this.getApiGatewayAuthorizersFor(functionName)
     const apiGatewayV2Methods = this.getApiGatewayV2MethodsFor(functionName)
     const apiGatewayV2Authorizers = this.getApiGatewayV2AuthorizersFor(functionName)
     const eventSourceMappings = this.getEventSourceMappingsFor(functionName)
@@ -174,6 +176,7 @@ class ServerlessCanaryDeployments {
     return Object.assign(
       {},
       apiGatewayMethods,
+      apiGatewayAuthorizers,
       apiGatewayV2Methods,
       apiGatewayV2Authorizers,
       eventSourceMappings,
@@ -214,6 +217,20 @@ class ServerlessCanaryDeployments {
     return getMethodsForFunction(this.compiledTpl.Resources)
   }
 
+  getApiGatewayAuthorizersFor (functionName) {
+    const isApiGMethod = _.matchesProperty('Type', 'AWS::ApiGateway::Authorizer')
+    const isMethodForFunction = _.pipe(
+      _.prop('Properties.AuthorizerUri'),
+      flattenObject,
+      _.includes(functionName)
+    )
+    const getMethodsForFunction = _.pipe(
+      _.pickBy(isApiGMethod),
+      _.pickBy(isMethodForFunction)
+    )
+    return getMethodsForFunction(this.compiledTpl.Resources)
+  }
+
   getApiGatewayV2AuthorizersFor (functionName) {
     const isApiGMethod = _.matchesProperty('Type', 'AWS::ApiGatewayV2::Authorizer')
     const isMethodForFunction = _.pipe(