diff --git a/packages/rn-tester/Podfile.lock b/packages/rn-tester/Podfile.lock
index 304c41947c4..34229c084da 100644
--- a/packages/rn-tester/Podfile.lock
+++ b/packages/rn-tester/Podfile.lock
@@ -986,7 +986,7 @@ SPEC CHECKSUMS:
   FlipperKit: 2efad7007d6745a3f95e4034d547be637f89d3f6
   fmt: ff9d55029c625d3757ed641535fd4a75fedc7ce9
   glog: 04b94705f318337d7ead9e6d17c019bd9b1f6b1b
-  hermes-engine: bd42a017cf90ea36e8d9afbb18c986f043285fdf
+  hermes-engine: 439aada3c8e1bc78a768cbcecf17d57bc82abc25
   libevent: 4049cae6c81cdb3654a443be001fb9bdceff7913
   OpenSSL-Universal: ebc357f1e6bc71fa463ccb2fe676756aff50e88c
   RCT-Folly: 424b8c9a7a0b9ab2886ffe9c3b041ef628fd4fb1
diff --git a/packages/rn-tester/RNTesterPods.xcodeproj/project.pbxproj b/packages/rn-tester/RNTesterPods.xcodeproj/project.pbxproj
index b4c39177fef..6bb28df0bcc 100644
--- a/packages/rn-tester/RNTesterPods.xcodeproj/project.pbxproj
+++ b/packages/rn-tester/RNTesterPods.xcodeproj/project.pbxproj
@@ -962,6 +962,10 @@
 				IPHONEOS_DEPLOYMENT_TARGET = 12.4;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
+				OTHER_CFLAGS = (
+					"$(inherited)",
+					"-DRN_FABRIC_ENABLED",
+				);
 				OTHER_CPLUSPLUSFLAGS = (
 					"$(OTHER_CFLAGS)",
 					"-DFOLLY_NO_CONFIG",
@@ -1039,6 +1043,10 @@
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				IPHONEOS_DEPLOYMENT_TARGET = 12.4;
 				MTL_ENABLE_DEBUG_INFO = NO;
+				OTHER_CFLAGS = (
+					"$(inherited)",
+					"-DRN_FABRIC_ENABLED",
+				);
 				OTHER_CPLUSPLUSFLAGS = (
 					"$(OTHER_CFLAGS)",
 					"-DFOLLY_NO_CONFIG",