diff --git a/PromiseKit.xcodeproj/project.pbxproj b/PromiseKit.xcodeproj/project.pbxproj
index 407ce8135..11493d20f 100644
--- a/PromiseKit.xcodeproj/project.pbxproj
+++ b/PromiseKit.xcodeproj/project.pbxproj
@@ -838,9 +838,10 @@
 				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				"LD_RUNPATH_SEARCH_PATHS[sdk=macosx*]" = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
-				MACOSX_DEPLOYMENT_TARGET = 10.12;
+				MACOSX_DEPLOYMENT_TARGET = 10.13;
 				SWIFT_INSTALL_OBJC_HEADER = NO;
-				TVOS_DEPLOYMENT_TARGET = 10.1;
+				TVOS_DEPLOYMENT_TARGET = 11.0;
+				WATCHOS_DEPLOYMENT_TARGET = 4.0;
 			};
 			name = Debug;
 		};
@@ -851,9 +852,10 @@
 				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				"LD_RUNPATH_SEARCH_PATHS[sdk=macosx*]" = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
-				MACOSX_DEPLOYMENT_TARGET = 10.12;
+				MACOSX_DEPLOYMENT_TARGET = 10.13;
 				SWIFT_INSTALL_OBJC_HEADER = NO;
-				TVOS_DEPLOYMENT_TARGET = 10.1;
+				TVOS_DEPLOYMENT_TARGET = 11.0;
+				WATCHOS_DEPLOYMENT_TARGET = 4.0;
 			};
 			name = Release;
 		};
@@ -863,8 +865,11 @@
 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				"LD_RUNPATH_SEARCH_PATHS[sdk=macosx*]" = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
+				MACOSX_DEPLOYMENT_TARGET = 10.13;
 				SWIFT_INSTALL_OBJC_HEADER = NO;
 				SWIFT_OBJC_BRIDGING_HEADER = Tests/Bridging/Infrastructure.h;
+				TVOS_DEPLOYMENT_TARGET = 11.0;
+				WATCHOS_DEPLOYMENT_TARGET = 4.0;
 			};
 			name = Debug;
 		};
@@ -874,8 +879,11 @@
 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				"LD_RUNPATH_SEARCH_PATHS[sdk=macosx*]" = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
+				MACOSX_DEPLOYMENT_TARGET = 10.13;
 				SWIFT_INSTALL_OBJC_HEADER = NO;
 				SWIFT_OBJC_BRIDGING_HEADER = Tests/Bridging/Infrastructure.h;
+				TVOS_DEPLOYMENT_TARGET = 11.0;
+				WATCHOS_DEPLOYMENT_TARGET = 4.0;
 			};
 			name = Release;
 		};
@@ -885,7 +893,10 @@
 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				"LD_RUNPATH_SEARCH_PATHS[sdk=macosx*]" = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
+				MACOSX_DEPLOYMENT_TARGET = 10.13;
 				SWIFT_INSTALL_OBJC_HEADER = NO;
+				TVOS_DEPLOYMENT_TARGET = 11.0;
+				WATCHOS_DEPLOYMENT_TARGET = 4.0;
 			};
 			name = Debug;
 		};
@@ -895,7 +906,10 @@
 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				LD_RUNPATH_SEARCH_PATHS = "@executable_path/Frameworks @loader_path/Frameworks";
 				"LD_RUNPATH_SEARCH_PATHS[sdk=macosx*]" = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
+				MACOSX_DEPLOYMENT_TARGET = 10.13;
 				SWIFT_INSTALL_OBJC_HEADER = NO;
+				TVOS_DEPLOYMENT_TARGET = 11.0;
+				WATCHOS_DEPLOYMENT_TARGET = 4.0;
 			};
 			name = Release;
 		};
@@ -905,9 +919,12 @@
 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				"LD_RUNPATH_SEARCH_PATHS[sdk=macosx*]" = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
+				MACOSX_DEPLOYMENT_TARGET = 10.13;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_INSTALL_OBJC_HEADER = NO;
 				SWIFT_SUPPRESS_WARNINGS = YES;
+				TVOS_DEPLOYMENT_TARGET = 11.0;
+				WATCHOS_DEPLOYMENT_TARGET = 4.0;
 			};
 			name = Debug;
 		};
@@ -917,9 +934,12 @@
 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				"LD_RUNPATH_SEARCH_PATHS[sdk=macosx*]" = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
+				MACOSX_DEPLOYMENT_TARGET = 10.13;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_INSTALL_OBJC_HEADER = NO;
 				SWIFT_SUPPRESS_WARNINGS = YES;
+				TVOS_DEPLOYMENT_TARGET = 11.0;
+				WATCHOS_DEPLOYMENT_TARGET = 4.0;
 			};
 			name = Release;
 		};
@@ -1089,12 +1109,16 @@
 				GCC_WARN_UNUSED_LABEL = YES;
 				GCC_WARN_UNUSED_PARAMETER = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				LD_DYLIB_INSTALL_NAME = "$(DYLIB_INSTALL_NAME_BASE:standardizepath)/$(EXECUTABLE_PATH)";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
+				MACOSX_DEPLOYMENT_TARGET = 10.13;
 				PRODUCT_BUNDLE_PACKAGE_TYPE = FMWK;
 				SKIP_INSTALL = YES;
 				SWIFT_TREAT_WARNINGS_AS_ERRORS = NO;
 				TARGETED_DEVICE_FAMILY = "1,2,3,4";
+				TVOS_DEPLOYMENT_TARGET = 11.0;
+				WATCHOS_DEPLOYMENT_TARGET = 4.0;
 			};
 			name = Debug;
 		};
@@ -1144,12 +1168,16 @@
 				GCC_WARN_UNUSED_LABEL = YES;
 				GCC_WARN_UNUSED_PARAMETER = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				LD_DYLIB_INSTALL_NAME = "$(DYLIB_INSTALL_NAME_BASE:standardizepath)/$(EXECUTABLE_PATH)";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
+				MACOSX_DEPLOYMENT_TARGET = 10.13;
 				PRODUCT_BUNDLE_PACKAGE_TYPE = FMWK;
 				SKIP_INSTALL = YES;
 				SWIFT_TREAT_WARNINGS_AS_ERRORS = NO;
 				TARGETED_DEVICE_FAMILY = "1,2,3,4";
+				TVOS_DEPLOYMENT_TARGET = 11.0;
+				WATCHOS_DEPLOYMENT_TARGET = 4.0;
 			};
 			name = Release;
 		};
@@ -1160,9 +1188,12 @@
 				CLANG_ENABLE_MODULES = YES;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				"LD_RUNPATH_SEARCH_PATHS[sdk=macosx*]" = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
+				MACOSX_DEPLOYMENT_TARGET = 10.13;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_INSTALL_OBJC_HEADER = NO;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				TVOS_DEPLOYMENT_TARGET = 11.0;
+				WATCHOS_DEPLOYMENT_TARGET = 4.0;
 			};
 			name = Debug;
 		};
@@ -1173,8 +1204,11 @@
 				CLANG_ENABLE_MODULES = YES;
 				LD_RUNPATH_SEARCH_PATHS = "@executable_path/Frameworks @loader_path/Frameworks";
 				"LD_RUNPATH_SEARCH_PATHS[sdk=macosx*]" = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
+				MACOSX_DEPLOYMENT_TARGET = 10.13;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_INSTALL_OBJC_HEADER = NO;
+				TVOS_DEPLOYMENT_TARGET = 11.0;
+				WATCHOS_DEPLOYMENT_TARGET = 4.0;
 			};
 			name = Release;
 		};