diff --git a/Signals.xcodeproj/project.pbxproj b/Signals.xcodeproj/project.pbxproj
index b4f651f..4ca0fbc 100644
--- a/Signals.xcodeproj/project.pbxproj
+++ b/Signals.xcodeproj/project.pbxproj
@@ -710,6 +710,7 @@
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = Signals/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
+				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "artman.fi.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = Signals;
@@ -727,6 +728,7 @@
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = Signals/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
+				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "artman.fi.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = Signals;
@@ -779,6 +781,7 @@
 				SDKROOT = watchos;
 				SKIP_INSTALL = YES;
 				TARGETED_DEVICE_FAMILY = 4;
+				WATCHOS_DEPLOYMENT_TARGET = 2.0;
 			};
 			name = Debug;
 		};
@@ -803,6 +806,7 @@
 				SDKROOT = watchos;
 				SKIP_INSTALL = YES;
 				TARGETED_DEVICE_FAMILY = 4;
+				WATCHOS_DEPLOYMENT_TARGET = 2.0;
 			};
 			name = Release;
 		};
@@ -822,6 +826,7 @@
 				SDKROOT = appletvos;
 				SKIP_INSTALL = YES;
 				TARGETED_DEVICE_FAMILY = 3;
+				TVOS_DEPLOYMENT_TARGET = 9.0;
 			};
 			name = Debug;
 		};
@@ -841,6 +846,7 @@
 				SDKROOT = appletvos;
 				SKIP_INSTALL = YES;
 				TARGETED_DEVICE_FAMILY = 3;
+				TVOS_DEPLOYMENT_TARGET = 9.0;
 			};
 			name = Release;
 		};
@@ -880,6 +886,7 @@
 				INFOPLIST_FILE = Signals/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/Frameworks";
+				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				PRODUCT_BUNDLE_IDENTIFIER = artman.fi.Signals;
 				PRODUCT_NAME = Signals;
 				SDKROOT = macosx;
@@ -899,6 +906,7 @@
 				INFOPLIST_FILE = Signals/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/Frameworks";
+				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				PRODUCT_BUNDLE_IDENTIFIER = artman.fi.Signals;
 				PRODUCT_NAME = Signals;
 				SDKROOT = macosx;