diff --git a/SwiftExtensions.xcodeproj/project.pbxproj b/SwiftExtensions.xcodeproj/project.pbxproj
index d303e30..f9d9b57 100644
--- a/SwiftExtensions.xcodeproj/project.pbxproj
+++ b/SwiftExtensions.xcodeproj/project.pbxproj
@@ -528,6 +528,7 @@
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = "$(SRCROOT)/Sources/Info.plist";
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
+				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.github.tattn.SwiftExtensions;
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
@@ -550,6 +551,7 @@
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = "$(SRCROOT)/Sources/Info.plist";
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
+				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.github.tattn.SwiftExtensions;
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";