diff --git a/context.go b/context.go
index 7b26531..f346304 100644
--- a/context.go
+++ b/context.go
@@ -101,31 +101,30 @@ func (c *Context) InitContext() {
 	}
 
 	providerOpts := letsencrypt.ProviderOpts{
-		Provider:             letsencrypt.Provider(providerParam),
-		AzureClientId:        getEnvOption("AZURE_CLIENT_ID", false),
-		AzureClientSecret:    getEnvOption("AZURE_CLIENT_SECRET", false),
-		AzureSubscriptionId:  getEnvOption("AZURE_SUBSCRIPTION_ID", false),
-		AzureTenantId:        getEnvOption("AZURE_TENANT_ID", false),
-		AzureResourceGroup:   getEnvOption("AZURE_RESOURCE_GROUP", false),
-		AuroraUserId:         getEnvOption("AURORA_USER_ID", false),
-		AuroraKey:            getEnvOption("AURORA_KEY", false),
-		AuroraEndpoint:       getEnvOption("AURORA_ENDPOINT", false),
-		CloudflareEmail:      getEnvOption("CLOUDFLARE_EMAIL", false),
-		CloudflareKey:        getEnvOption("CLOUDFLARE_KEY", false),
-		DoAccessToken:        getEnvOption("DO_ACCESS_TOKEN", false),
-		AwsAccessKey:         getEnvOption("AWS_ACCESS_KEY", false),
-		AwsSecretKey:         getEnvOption("AWS_SECRET_KEY", false),
-		DNSimpleEmail:        getEnvOption("DNSIMPLE_EMAIL", false),
-		DNSimpleKey:          getEnvOption("DNSIMPLE_KEY", false),
-		DynCustomerName:      getEnvOption("DYN_CUSTOMER_NAME", false),
-		DynUserName:          getEnvOption("DYN_USER_NAME", false),
-		DynPassword:          getEnvOption("DYN_PASSWORD", false),
-		VultrApiKey:          getEnvOption("VULTR_API_KEY", false),
-		OvhApplicationKey:    getEnvOption("OVH_APPLICATION_KEY", false),
-		OvhApplicationSecret: getEnvOption("OVH_APPLICATION_SECRET", false),
-		OvhConsumerKey:       getEnvOption("OVH_CONSUMER_KEY", false),
-		GandiApiKey:          getEnvOption("GANDI_API_KEY", false),
-		NS1ApiKey:            getEnvOption("NS1_API_KEY", false),
+		Provider:              letsencrypt.Provider(providerParam),
+		AzureClientId:         getEnvOption("AZURE_CLIENT_ID", false),
+		AzureClientSecret:     getEnvOption("AZURE_CLIENT_SECRET", false),
+		AzureSubscriptionId:   getEnvOption("AZURE_SUBSCRIPTION_ID", false),
+		AzureTenantId:         getEnvOption("AZURE_TENANT_ID", false),
+		AzureResourceGroup:    getEnvOption("AZURE_RESOURCE_GROUP", false),
+		AuroraUserId:          getEnvOption("AURORA_USER_ID", false),
+		AuroraKey:             getEnvOption("AURORA_KEY", false),
+		AuroraEndpoint:        getEnvOption("AURORA_ENDPOINT", false),
+		CloudflareEmail:       getEnvOption("CLOUDFLARE_EMAIL", false),
+		CloudflareKey:         getEnvOption("CLOUDFLARE_KEY", false),
+		DoAccessToken:         getEnvOption("DO_ACCESS_TOKEN", false),
+		AwsAccessKey:          getEnvOption("AWS_ACCESS_KEY", false),
+		AwsSecretKey:          getEnvOption("AWS_SECRET_KEY", false),
+		DNSimpleAccountAccess: getEnvOption("DNSIMPLE_ACCOUNT_ACCESS", false),
+		DynCustomerName:       getEnvOption("DYN_CUSTOMER_NAME", false),
+		DynUserName:           getEnvOption("DYN_USER_NAME", false),
+		DynPassword:           getEnvOption("DYN_PASSWORD", false),
+		VultrApiKey:           getEnvOption("VULTR_API_KEY", false),
+		OvhApplicationKey:     getEnvOption("OVH_APPLICATION_KEY", false),
+		OvhApplicationSecret:  getEnvOption("OVH_APPLICATION_SECRET", false),
+		OvhConsumerKey:        getEnvOption("OVH_CONSUMER_KEY", false),
+		GandiApiKey:           getEnvOption("GANDI_API_KEY", false),
+		NS1ApiKey:             getEnvOption("NS1_API_KEY", false),
 	}
 
 	c.Acme, err = letsencrypt.NewClient(emailParam, keyType, apiVersion, dnsResolvers, providerOpts)
diff --git a/letsencrypt/providers.go b/letsencrypt/providers.go
index bd1bc89..2980a1c 100644
--- a/letsencrypt/providers.go
+++ b/letsencrypt/providers.go
@@ -47,8 +47,7 @@ type ProviderOpts struct {
 	DoAccessToken string
 
 	// DNSimple credentials
-	DNSimpleEmail string
-	DNSimpleKey   string
+	DNSimpleAccountAccess string
 
 	// Dyn credentials
 	DynCustomerName string
@@ -195,14 +194,11 @@ func makeRoute53Provider(opts ProviderOpts) (lego.ChallengeProvider, error) {
 
 // returns a preconfigured DNSimple lego.ChallengeProvider
 func makeDNSimpleProvider(opts ProviderOpts) (lego.ChallengeProvider, error) {
-	if len(opts.DNSimpleEmail) == 0 {
-		return nil, fmt.Errorf("DNSimple Email is not set")
-	}
-	if len(opts.DNSimpleKey) == 0 {
-		return nil, fmt.Errorf("DNSimple API key is not set")
+	if len(opts.DNSimpleAccountAccess) == 0 {
+		return nil, fmt.Errorf("DNSimple Domain API token is not set")
 	}
 
-	provider, err := dnsimple.NewDNSProviderCredentials(opts.DNSimpleEmail, opts.DNSimpleKey)
+	provider, err := dnsimple.NewDNSProviderCredentials(opts.DNSimpleAccountAccess, "https://api.dnsimple.com")
 	if err != nil {
 		return nil, err
 	}