diff --git a/VSAlert.xcodeproj/project.pbxproj b/VSAlert.xcodeproj/project.pbxproj
index 12c1343..a2aeb75 100755
--- a/VSAlert.xcodeproj/project.pbxproj
+++ b/VSAlert.xcodeproj/project.pbxproj
@@ -361,7 +361,7 @@
 		07F00ED91F8A96D9006FAC96 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 1000;
+				LastUpgradeCheck = 1240;
 				TargetAttributes = {
 					0710F9B61F8B1CB800C6D084 = {
 						CreatedOnToolsVersion = 9.0;
@@ -571,7 +571,7 @@
 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				INFOPLIST_FILE = VSAlertTests/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
@@ -607,7 +607,7 @@
 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				INFOPLIST_FILE = VSAlertTests/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				MTL_ENABLE_DEBUG_INFO = NO;
 				PRODUCT_BUNDLE_IDENTIFIER = com.varunsanthanam.VSAlertTests;
@@ -732,7 +732,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				OTHER_CFLAGS = "-fembed-bitcode";
@@ -791,7 +791,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				OTHER_CFLAGS = "-fembed-bitcode";
 				OTHER_LDFLAGS = "-ObjC";
@@ -878,7 +878,7 @@
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				INFOPLIST_FILE = "VSAlert-Example/Info.plist";
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
@@ -936,7 +936,7 @@
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				INFOPLIST_FILE = "VSAlert-Example/Info.plist";
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				MTL_ENABLE_DEBUG_INFO = NO;
 				PRODUCT_BUNDLE_IDENTIFIER = "com.varunsanthanam.VSAlert-Example";
diff --git a/VSAlert/VSAlertController.m b/VSAlert/VSAlertController.m
index 769f7a5..940a88d 100755
--- a/VSAlert/VSAlertController.m
+++ b/VSAlert/VSAlertController.m
@@ -120,7 +120,8 @@ - (void)animateTransition:(id<UIViewControllerContextTransitioning>)transitionCo
                                      
                                  }
                                  completion:^(BOOL finished) {
-                                     
+                    
+                                     [self _constrain:alertController.view toParent:fromController.view];
                                      [transitionContext completeTransition:finished];
                                      
                                  }];
@@ -144,7 +145,7 @@ - (void)animateTransition:(id<UIViewControllerContextTransitioning>)transitionCo
                                  }
                                  completion:^(BOOL finished) {
                                      
-                                     
+                                     [self _constrain:alertController.view toParent:fromController.view];
                                      [transitionContext completeTransition:finished];
                                      
                                  }];
@@ -173,6 +174,7 @@ - (void)animateTransition:(id<UIViewControllerContextTransitioning>)transitionCo
                                         }
                                         completion:^(BOOL finished) {
                                             
+                                            [self _constrain:alertController.view toParent:fromController.view];
                                             [transitionContext completeTransition:finished];
                                             
                                         }];
@@ -206,6 +208,7 @@ - (void)animateTransition:(id<UIViewControllerContextTransitioning>)transitionCo
                                         }
                                         completion:^(BOOL finished) {
                                             
+                                            [self _constrain:alertController.view toParent:fromController.view];
                                             [transitionContext completeTransition:finished];
                                             
                                         }];
@@ -238,6 +241,7 @@ - (void)animateTransition:(id<UIViewControllerContextTransitioning>)transitionCo
                                         }
                                         completion:^(BOOL finished) {
                                             
+                                            [self _constrain:alertController.view toParent:fromController.view];
                                             [transitionContext completeTransition:finished];
                                             
                                         }];
@@ -508,6 +512,13 @@ - (VSAlertControllerAnimationStyle)_automaticDismissalStyleForController:(VSAler
     
 }
 
+- (void)_constrain:(UIView *)alertView toParent:(UIView *)parent {
+    [alertView.topAnchor constraintEqualToAnchor: parent.topAnchor].active = YES;
+    [alertView.leadingAnchor constraintEqualToAnchor: parent.leadingAnchor].active = YES;
+    [alertView.trailingAnchor constraintEqualToAnchor: parent.trailingAnchor].active = YES;
+    [alertView.bottomAnchor constraintEqualToAnchor: parent.bottomAnchor].active = YES;
+}
+
 @end
 
 @interface VSAlertController ()<UIViewControllerTransitioningDelegate>