diff --git a/RestKit.xcodeproj/project.pbxproj b/RestKit.xcodeproj/project.pbxproj
index 6da9584220..534810ef0c 100644
--- a/RestKit.xcodeproj/project.pbxproj
+++ b/RestKit.xcodeproj/project.pbxproj
@@ -2514,6 +2514,7 @@
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
 				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
@@ -2543,6 +2544,7 @@
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
 				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = YES;
diff --git a/RestKit.xcworkspace/xcshareddata/xcschemes/Build All Examples.xcscheme b/RestKit.xcworkspace/xcshareddata/xcschemes/Build All Examples.xcscheme
index c19e923f26..b05e072f43 100644
--- a/RestKit.xcworkspace/xcshareddata/xcschemes/Build All Examples.xcscheme	
+++ b/RestKit.xcworkspace/xcshareddata/xcschemes/Build All Examples.xcscheme	
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0450"
+   LastUpgradeVersion = "0460"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/RestKit.xcworkspace/xcshareddata/xcschemes/RestKitFrameworkTests.xcscheme b/RestKit.xcworkspace/xcshareddata/xcschemes/RestKitFrameworkTests.xcscheme
index 8321ee2371..bd2bb443e6 100644
--- a/RestKit.xcworkspace/xcshareddata/xcschemes/RestKitFrameworkTests.xcscheme
+++ b/RestKit.xcworkspace/xcshareddata/xcschemes/RestKitFrameworkTests.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0450"
+   LastUpgradeVersion = "0460"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/RestKit.xcworkspace/xcshareddata/xcschemes/RestKitTests.xcscheme b/RestKit.xcworkspace/xcshareddata/xcschemes/RestKitTests.xcscheme
index 4865b93c62..c23233fc92 100644
--- a/RestKit.xcworkspace/xcshareddata/xcschemes/RestKitTests.xcscheme
+++ b/RestKit.xcworkspace/xcshareddata/xcschemes/RestKitTests.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0450"
+   LastUpgradeVersion = "0460"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"