diff --git a/events/apigw.go b/events/apigw.go
index 3f1ddc2c..11f75e4d 100644
--- a/events/apigw.go
+++ b/events/apigw.go
@@ -2,10 +2,6 @@
 
 package events
 
-import (
-	"time"
-)
-
 // APIGatewayProxyRequest contains data coming from the API Gateway proxy
 type APIGatewayProxyRequest struct {
 	Resource                        string                        `json:"resource"` // The resource path defined in API Gateway
@@ -212,8 +208,8 @@ type APIGatewayCustomAuthorizerRequestTypeRequestIdentityClientCert struct {
 
 // APIGatewayCustomAuthorizerRequestTypeRequestIdentityClientCertValidity contains certificate validity information for the request caller if using mTLS.
 type APIGatewayCustomAuthorizerRequestTypeRequestIdentityClientCertValidity struct {
-	NotAfter  time.Time `json:"notAfter"`
-	NotBefore time.Time `json:"notBefore"`
+	NotAfter  string `json:"notAfter"`
+	NotBefore string `json:"notBefore"`
 }
 
 // APIGatewayV2HTTPRequestContextAuthentication contains authentication context information for the request caller including client certificate information if using mTLS.
@@ -232,8 +228,8 @@ type APIGatewayV2HTTPRequestContextAuthenticationClientCert struct {
 
 // APIGatewayV2HTTPRequestContextAuthenticationClientCertValidity contains client certificate validity information for the request caller if using mTLS.
 type APIGatewayV2HTTPRequestContextAuthenticationClientCertValidity struct {
-	NotAfter  time.Time `json:"notAfter"`
-	NotBefore time.Time `json:"notBefore"`
+	NotAfter  string `json:"notAfter"`
+	NotBefore string `json:"notBefore"`
 }
 
 // APIGatewayCustomAuthorizerContext represents the expected format of an API Gateway custom authorizer response.