diff --git a/OpenRCT2.xcodeproj/project.pbxproj b/OpenRCT2.xcodeproj/project.pbxproj
index e75854dc5d..a0286e2188 100644
--- a/OpenRCT2.xcodeproj/project.pbxproj
+++ b/OpenRCT2.xcodeproj/project.pbxproj
@@ -3487,7 +3487,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = NO;
@@ -3535,7 +3535,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = NO;
@@ -3581,7 +3581,7 @@
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_WARN_UNREACHABLE_CODE = NO;
 				CLANG_X86_VECTOR_INSTRUCTIONS = default;
@@ -3618,7 +3618,7 @@
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_WARN_UNREACHABLE_CODE = NO;
 				CLANG_X86_VECTOR_INSTRUCTIONS = default;
@@ -3655,7 +3655,7 @@
 			buildSettings = {
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_OBJC_ARC = NO;
 				CLANG_WARN_DOCUMENTATION_COMMENTS = NO;
 				CLANG_WARN_UNREACHABLE_CODE = NO;
@@ -3693,7 +3693,7 @@
 			buildSettings = {
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_OBJC_ARC = NO;
 				CLANG_WARN_DOCUMENTATION_COMMENTS = NO;
 				CLANG_WARN_UNREACHABLE_CODE = NO;
@@ -3731,7 +3731,7 @@
 			buildSettings = {
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_OBJC_ARC = NO;
 				CLANG_WARN_DOCUMENTATION_COMMENTS = NO;
 				CODE_SIGN_IDENTITY = "";
@@ -3763,7 +3763,7 @@
 			buildSettings = {
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CLANG_ENABLE_OBJC_ARC = NO;
 				CLANG_WARN_DOCUMENTATION_COMMENTS = NO;
 				CODE_SIGN_IDENTITY = "";