diff --git a/samples/calculator/iosApp/calculator.xcodeproj/project.pbxproj b/samples/calculator/iosApp/calculator.xcodeproj/project.pbxproj
index 9d3e71fc9c4..377cb0b7a4f 100644
--- a/samples/calculator/iosApp/calculator.xcodeproj/project.pbxproj
+++ b/samples/calculator/iosApp/calculator.xcodeproj/project.pbxproj
@@ -398,7 +398,7 @@
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = $BUILT_PRODUCTS_DIR;
 				INFOPLIST_FILE = calculator/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 10.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = org.jetbrains.konan.calculator;
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -417,7 +417,7 @@
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = $BUILT_PRODUCTS_DIR;
 				INFOPLIST_FILE = calculator/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 10.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = org.jetbrains.konan.calculator;
 				PRODUCT_NAME = "$(TARGET_NAME)";