diff --git a/BTNavigationDropdownMenu.xcodeproj/project.pbxproj b/BTNavigationDropdownMenu.xcodeproj/project.pbxproj
index 0d4d557e..80781906 100644
--- a/BTNavigationDropdownMenu.xcodeproj/project.pbxproj
+++ b/BTNavigationDropdownMenu.xcodeproj/project.pbxproj
@@ -146,11 +146,12 @@
 		AA07A58E2182FC7000C097DD /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 1000;
+				LastUpgradeCheck = 1250;
 				ORGANIZATIONNAME = "Pham Ba Tho";
 				TargetAttributes = {
 					AA07A5962182FC7000C097DD = {
 						CreatedOnToolsVersion = 10.0;
+						LastSwiftMigration = 1250;
 					};
 				};
 			};
@@ -230,6 +231,7 @@
 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
@@ -294,6 +296,7 @@
 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
@@ -337,7 +340,7 @@
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = "$(SRCROOT)/Source/Info.plist";
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 8.1;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -346,7 +349,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = pham.ba.tho.BTNavigationDropdownMenu;
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Debug;
@@ -362,7 +365,7 @@
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = "$(SRCROOT)/Source/Info.plist";
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 8.1;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -371,7 +374,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = pham.ba.tho.BTNavigationDropdownMenu;
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Release;
diff --git a/BTNavigationDropdownMenu.xcodeproj/xcshareddata/xcschemes/BTNavigationDropdownMenu.xcscheme b/BTNavigationDropdownMenu.xcodeproj/xcshareddata/xcschemes/BTNavigationDropdownMenu.xcscheme
index 179dc518..bb21a6d2 100644
--- a/BTNavigationDropdownMenu.xcodeproj/xcshareddata/xcschemes/BTNavigationDropdownMenu.xcscheme
+++ b/BTNavigationDropdownMenu.xcodeproj/xcshareddata/xcschemes/BTNavigationDropdownMenu.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1000"
+   LastUpgradeVersion = "1250"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
@@ -29,8 +29,6 @@
       shouldUseLaunchSchemeArgsEnv = "YES">
       <Testables>
       </Testables>
-      <AdditionalOptions>
-      </AdditionalOptions>
    </TestAction>
    <LaunchAction
       buildConfiguration = "Debug"
@@ -51,8 +49,6 @@
             ReferencedContainer = "container:BTNavigationDropdownMenu.xcodeproj">
          </BuildableReference>
       </MacroExpansion>
-      <AdditionalOptions>
-      </AdditionalOptions>
    </LaunchAction>
    <ProfileAction
       buildConfiguration = "Release"