diff --git a/Defaults.podspec b/Defaults.podspec
index ec52915..82d8a4f 100644
--- a/Defaults.podspec
+++ b/Defaults.podspec
@@ -8,7 +8,7 @@ Pod::Spec.new do |s|
 	s.authors = { 'Sindre Sorhus' => 'sindresorhus@gmail.com' }
 	s.source = { :git => 'https://github.com/sindresorhus/Defaults.git', :tag => "v#{s.version}" }
 	s.source_files = 'Sources/**/*.swift'
-	s.swift_version = '5.2'
+	s.swift_version = '5.3'
 	s.macos.deployment_target = '10.12'
 	s.ios.deployment_target = '10.0'
 	s.tvos.deployment_target = '10.0'
diff --git a/Defaults.xcodeproj/project.pbxproj b/Defaults.xcodeproj/project.pbxproj
index d8b1339..966867d 100644
--- a/Defaults.xcodeproj/project.pbxproj
+++ b/Defaults.xcodeproj/project.pbxproj
@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 51;
+	objectVersion = 54;
 	objects = {
 
 /* Begin PBXBuildFile section */
@@ -393,7 +393,7 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 0720;
-				LastUpgradeCheck = 1160;
+				LastUpgradeCheck = 1200;
 				ORGANIZATIONNAME = Defaults;
 				TargetAttributes = {
 					52D6D97B1BEFF229002C0205 = {
@@ -427,7 +427,7 @@
 				};
 			};
 			buildConfigurationList = 52D6D9761BEFF229002C0205 /* Build configuration list for PBXProject "Defaults" */;
-			compatibilityVersion = "Xcode 10.0";
+			compatibilityVersion = "Xcode 12.0";
 			developmentRegion = en;
 			hasScannedForEncodings = 0;
 			knownRegions = (
@@ -627,6 +627,7 @@
 				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;
@@ -652,7 +653,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				MACOSX_DEPLOYMENT_TARGET = 10.12;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
@@ -693,6 +694,7 @@
 				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;
@@ -712,7 +714,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				MACOSX_DEPLOYMENT_TARGET = 10.12;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				OTHER_LDFLAGS = (
@@ -744,7 +746,7 @@
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = Configs/Defaults.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -780,7 +782,7 @@
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = Configs/Defaults.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -919,7 +921,7 @@
 				SDKROOT = appletvos;
 				SKIP_INSTALL = YES;
 				TARGETED_DEVICE_FAMILY = 3;
-				TVOS_DEPLOYMENT_TARGET = 10.0;
+				TVOS_DEPLOYMENT_TARGET = 12.0;
 			};
 			name = Debug;
 		};
@@ -947,7 +949,7 @@
 				SWIFT_COMPILATION_MODE = wholemodule;
 				SWIFT_OPTIMIZATION_LEVEL = "-O";
 				TARGETED_DEVICE_FAMILY = 3;
-				TVOS_DEPLOYMENT_TARGET = 10.0;
+				TVOS_DEPLOYMENT_TARGET = 12.0;
 			};
 			name = Release;
 		};
@@ -1059,7 +1061,7 @@
 				PROVISIONING_PROFILE_SPECIFIER = "";
 				SDKROOT = appletvos;
 				TARGETED_DEVICE_FAMILY = 3;
-				TVOS_DEPLOYMENT_TARGET = 10.0;
+				TVOS_DEPLOYMENT_TARGET = 12.0;
 			};
 			name = Debug;
 		};
@@ -1081,7 +1083,7 @@
 				SWIFT_COMPILATION_MODE = wholemodule;
 				SWIFT_OPTIMIZATION_LEVEL = "-O";
 				TARGETED_DEVICE_FAMILY = 3;
-				TVOS_DEPLOYMENT_TARGET = 10.0;
+				TVOS_DEPLOYMENT_TARGET = 12.0;
 			};
 			name = Release;
 		};
diff --git a/Defaults.xcodeproj/xcshareddata/xcschemes/Defaults-iOS.xcscheme b/Defaults.xcodeproj/xcshareddata/xcschemes/Defaults-iOS.xcscheme
index 0970cbc..dfc0e45 100644
--- a/Defaults.xcodeproj/xcshareddata/xcschemes/Defaults-iOS.xcscheme
+++ b/Defaults.xcodeproj/xcshareddata/xcschemes/Defaults-iOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1160"
+   LastUpgradeVersion = "1200"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/Defaults.xcodeproj/xcshareddata/xcschemes/Defaults-macOS.xcscheme b/Defaults.xcodeproj/xcshareddata/xcschemes/Defaults-macOS.xcscheme
index d59ed45..10c1e98 100644
--- a/Defaults.xcodeproj/xcshareddata/xcschemes/Defaults-macOS.xcscheme
+++ b/Defaults.xcodeproj/xcshareddata/xcschemes/Defaults-macOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1160"
+   LastUpgradeVersion = "1200"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/Defaults.xcodeproj/xcshareddata/xcschemes/Defaults-tvOS.xcscheme b/Defaults.xcodeproj/xcshareddata/xcschemes/Defaults-tvOS.xcscheme
index 42fb766..1a5ea11 100644
--- a/Defaults.xcodeproj/xcshareddata/xcschemes/Defaults-tvOS.xcscheme
+++ b/Defaults.xcodeproj/xcshareddata/xcschemes/Defaults-tvOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1160"
+   LastUpgradeVersion = "1200"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/Defaults.xcodeproj/xcshareddata/xcschemes/Defaults-watchOS.xcscheme b/Defaults.xcodeproj/xcshareddata/xcschemes/Defaults-watchOS.xcscheme
index 46403f2..09c9bf2 100644
--- a/Defaults.xcodeproj/xcshareddata/xcschemes/Defaults-watchOS.xcscheme
+++ b/Defaults.xcodeproj/xcshareddata/xcschemes/Defaults-watchOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1160"
+   LastUpgradeVersion = "1200"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/Sources/Defaults/SwiftUI.swift b/Sources/Defaults/SwiftUI.swift
index 26f7f0b..743d2dc 100644
--- a/Sources/Defaults/SwiftUI.swift
+++ b/Sources/Defaults/SwiftUI.swift
@@ -100,7 +100,7 @@ public struct Default<Value: Codable>: DynamicProperty {
 
 		var body: some View {
 			Button("Reset") {
-				self._opacity.reset()
+				_opacity.reset()
 			}
 		}
 	}