diff --git a/checkly_test.go b/checkly_test.go
index e1b5acf..efb945e 100644
--- a/checkly_test.go
+++ b/checkly_test.go
@@ -60,6 +60,7 @@ var wantCheck = checkly.Check{
 			Username: "",
 			Password: "",
 		},
+		IPFamily: "IPv4",
 	},
 	Script: "foo",
 	EnvironmentVariables: []checkly.EnvironmentVariable{
@@ -86,6 +87,10 @@ var wantCheck = checkly.Check{
 		Reminders: checkly.Reminders{
 			Interval: 5,
 		},
+		ParallelRunFailureThreshold: checkly.ParallelRunFailureThreshold{
+			Enabled:    false,
+			Percentage: 10,
+		},
 	},
 	UseGlobalAlertSettings:    false,
 	DegradedResponseTime:      15000,
@@ -378,6 +383,10 @@ var wantGroup = checkly.Group{
 			Amount:   0,
 			Interval: 5,
 		},
+		ParallelRunFailureThreshold: checkly.ParallelRunFailureThreshold{
+			Enabled:    false,
+			Percentage: 10,
+		},
 	},
 	AlertChannelSubscriptions: []checkly.AlertChannelSubscription{
 		{
diff --git a/fixtures/CreateCheck.json b/fixtures/CreateCheck.json
index 275c952..1235116 100644
--- a/fixtures/CreateCheck.json
+++ b/fixtures/CreateCheck.json
@@ -33,7 +33,8 @@
     "basicAuth": {
       "password": "",
       "username": ""
-    }
+    },
+    "ipFamily": "IPv4"
   },
   "frequency": 10,
   "muted": false,
@@ -62,6 +63,10 @@
     "reminders": {
       "amount": 0,
       "interval": 5
+    },
+    "parallelRunFailureThreshold": {
+      "enabled": false,
+ 		  "percentage": 10
     }
   },
   "script": "foo",
diff --git a/fixtures/CreateGroup.json b/fixtures/CreateGroup.json
index cd647a1..f3250d6 100644
--- a/fixtures/CreateGroup.json
+++ b/fixtures/CreateGroup.json
@@ -58,6 +58,10 @@
     "reminders": {
       "amount": 0,
       "interval": 5
+    },
+    "parallelRunFailureThreshold": {
+      "enabled": false,
+ 		  "percentage": 10
     }
   },
   "alertChannelSubscriptions": [
diff --git a/fixtures/GetCheck.json b/fixtures/GetCheck.json
index 275c952..1235116 100644
--- a/fixtures/GetCheck.json
+++ b/fixtures/GetCheck.json
@@ -33,7 +33,8 @@
     "basicAuth": {
       "password": "",
       "username": ""
-    }
+    },
+    "ipFamily": "IPv4"
   },
   "frequency": 10,
   "muted": false,
@@ -62,6 +63,10 @@
     "reminders": {
       "amount": 0,
       "interval": 5
+    },
+    "parallelRunFailureThreshold": {
+      "enabled": false,
+ 		  "percentage": 10
     }
   },
   "script": "foo",
diff --git a/fixtures/UpdateCheck.json b/fixtures/UpdateCheck.json
index 275c952..1235116 100644
--- a/fixtures/UpdateCheck.json
+++ b/fixtures/UpdateCheck.json
@@ -33,7 +33,8 @@
     "basicAuth": {
       "password": "",
       "username": ""
-    }
+    },
+    "ipFamily": "IPv4"
   },
   "frequency": 10,
   "muted": false,
@@ -62,6 +63,10 @@
     "reminders": {
       "amount": 0,
       "interval": 5
+    },
+    "parallelRunFailureThreshold": {
+      "enabled": false,
+ 		  "percentage": 10
     }
   },
   "script": "foo",
diff --git a/fixtures/UpdateGroup.json b/fixtures/UpdateGroup.json
index 146dab2..078f6ba 100644
--- a/fixtures/UpdateGroup.json
+++ b/fixtures/UpdateGroup.json
@@ -36,6 +36,10 @@
       "amount": 0,
       "interval": 5
     },
+    "parallelRunFailureThreshold": {
+      "enabled": false,
+ 		  "percentage": 10
+    },
     "escalationType": "RUN_BASED",
     "runBasedEscalation": {
       "failedRunThreshold": 1
diff --git a/types.go b/types.go
index 12160b3..b618c00 100644
--- a/types.go
+++ b/types.go
@@ -542,6 +542,7 @@ type Request struct {
 	QueryParameters []KeyValue  `json:"queryParameters"`
 	Assertions      []Assertion `json:"assertions"`
 	BasicAuth       *BasicAuth  `json:"basicAuth,omitempty"`
+	IPFamily        string      `json:"ipFamily,omitempty"`
 }
 
 // Assertion represents an assertion about an API response, which will be
@@ -605,14 +606,14 @@ type AlertSettings struct {
 	Reminders                   Reminders                   `json:"reminders,omitempty"`
 	ParallelRunFailureThreshold ParallelRunFailureThreshold `json:"parallelRunFailureThreshold,omitempty"`
 	// Deprecated: this property will be removed in future versions.
-	SSLCertificates             SSLCertificates             `json:"sslCertificates,omitempty"`
+	SSLCertificates SSLCertificates `json:"sslCertificates,omitempty"`
 }
 
 // ParallelRunFailureThreshold represent an alert escalation based on the number
 // of failing regions, only applicable for parallel checks
 type ParallelRunFailureThreshold struct {
-  Enabled     bool `json:"enabled,omitempty"`
-  Percentage  int  `json:"percentage,omitempty"`
+	Enabled    bool `json:"enabled,omitempty"`
+	Percentage int  `json:"percentage,omitempty"`
 }
 
 // RunBasedEscalation represents an alert escalation based on a number of failed