diff --git a/Thrift.xcodeproj/project.pbxproj b/Thrift.xcodeproj/project.pbxproj
index 9bbb538..86b6f2d 100644
--- a/Thrift.xcodeproj/project.pbxproj
+++ b/Thrift.xcodeproj/project.pbxproj
@@ -384,6 +384,7 @@
 				ENABLE_TESTABILITY = YES;
 				FRAMEWORK_SEARCH_PATHS = "$(PLATFORM_DIR)/Developer/Library/Frameworks";
 				INFOPLIST_FILE = Thrift.xcodeproj/Thrift_Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(TOOLCHAIN_DIR)/usr/lib/swift/macosx";
 				OTHER_LDFLAGS = "$(inherited)";
 				OTHER_SWIFT_FLAGS = "$(inherited)";
@@ -391,6 +392,8 @@
 				PRODUCT_MODULE_NAME = "$(TARGET_NAME:c99extidentifier)";
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
 				SWIFT_VERSION = 3.0;
+				TVOS_DEPLOYMENT_TARGET = 10.0;
+				WATCHOS_DEPLOYMENT_TARGET = 4.0;
 			};
 			name = Release;
 		};
@@ -413,6 +416,7 @@
 				ENABLE_TESTABILITY = YES;
 				FRAMEWORK_SEARCH_PATHS = "$(PLATFORM_DIR)/Developer/Library/Frameworks";
 				INFOPLIST_FILE = Thrift.xcodeproj/Thrift_Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(TOOLCHAIN_DIR)/usr/lib/swift/macosx";
 				OTHER_LDFLAGS = "$(inherited)";
 				OTHER_SWIFT_FLAGS = "$(inherited)";
@@ -421,6 +425,8 @@
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				SWIFT_VERSION = 3.0;
+				TVOS_DEPLOYMENT_TARGET = 10.0;
+				WATCHOS_DEPLOYMENT_TARGET = 4.0;
 			};
 			name = Debug;
 		};