diff --git a/Transmission.xcodeproj/project.pbxproj b/Transmission.xcodeproj/project.pbxproj
index 267d02e3a..12a536489 100644
--- a/Transmission.xcodeproj/project.pbxproj
+++ b/Transmission.xcodeproj/project.pbxproj
@@ -645,6 +645,7 @@
 		A22B00AF116A9E90003315FC /* connecthostport.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = connecthostport.h; path = "third-party/miniupnpc/connecthostport.h"; sourceTree = "<group>"; };
 		A22BAE261388040500FB022F /* NSMutableArrayAdditions.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = NSMutableArrayAdditions.h; path = macosx/NSMutableArrayAdditions.h; sourceTree = "<group>"; };
 		A22BAE271388040500FB022F /* NSMutableArrayAdditions.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; name = NSMutableArrayAdditions.m; path = macosx/NSMutableArrayAdditions.m; sourceTree = "<group>"; };
+		A22CEF9E21CDC44400C5C1BA /* Transmission.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; name = Transmission.entitlements; path = macosx/Transmission.entitlements; sourceTree = "<group>"; };
 		A22CF7AC0FA3505F0009BD3E /* it */ = {isa = PBXFileReference; lastKnownFileType = file.xib; name = it; path = macosx/it.lproj/GroupRules.xib; sourceTree = "<group>"; };
 		A22CF7B90FA352740009BD3E /* fr */ = {isa = PBXFileReference; lastKnownFileType = file.xib; name = fr; path = macosx/fr.lproj/GroupRules.xib; sourceTree = "<group>"; };
 		A22CF7C90FA5D3F90009BD3E /* es */ = {isa = PBXFileReference; lastKnownFileType = file.xib; name = es; path = macosx/es.lproj/GroupRules.xib; sourceTree = "<group>"; };
@@ -1263,6 +1264,7 @@
 		29B97314FDCFA39411CA2CEA /* Transmission */ = {
 			isa = PBXGroup;
 			children = (
+				A22CEF9E21CDC44400C5C1BA /* Transmission.entitlements */,
 				4DDBB70A09E16B3200284745 /* GUI */,
 				A2F35BC315C5A0A100EBF632 /* QuickLookPlugin */,
 				4D1838DC09DEC04A0047D688 /* libtransmission */,
@@ -2155,6 +2157,13 @@
 				LastUpgradeCheck = 0420;
 				ORGANIZATIONNAME = "The Transmission Project";
 				TargetAttributes = {
+					8D1107260486CEB800E47090 = {
+						SystemCapabilities = {
+							com.apple.HardenedRuntime = {
+								enabled = 1;
+							};
+						};
+					};
 					C1639A6E1A55F4D600E42033 = {
 						CreatedOnToolsVersion = 6.1.1;
 					};
@@ -2951,6 +2960,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				CLANG_ENABLE_OBJC_ARC = YES;
+				ENABLE_HARDENED_RUNTIME = YES;
 				FRAMEWORK_SEARCH_PATHS = macosx;
 				GCC_PREFIX_HEADER = macosx/Transmission_Prefix.pch;
 				HEADER_SEARCH_PATHS = (
@@ -3138,6 +3148,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				CLANG_ENABLE_OBJC_ARC = YES;
+				ENABLE_HARDENED_RUNTIME = YES;
 				FRAMEWORK_SEARCH_PATHS = macosx;
 				GCC_PREFIX_HEADER = macosx/Transmission_Prefix.pch;
 				HEADER_SEARCH_PATHS = (
@@ -3292,6 +3303,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				CLANG_ENABLE_OBJC_ARC = YES;
+				ENABLE_HARDENED_RUNTIME = YES;
 				FRAMEWORK_SEARCH_PATHS = macosx;
 				GCC_PREFIX_HEADER = macosx/Transmission_Prefix.pch;
 				HEADER_SEARCH_PATHS = (
diff --git a/macosx/Transmission.entitlements b/macosx/Transmission.entitlements
new file mode 100644
index 000000000..0c67376eb
--- /dev/null
+++ b/macosx/Transmission.entitlements
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict/>
+</plist>