diff --git a/ReactCommon/React-Fabric.podspec b/ReactCommon/React-Fabric.podspec
index 361c24df8ed41c..9c9d693487598d 100644
--- a/ReactCommon/React-Fabric.podspec
+++ b/ReactCommon/React-Fabric.podspec
@@ -252,6 +252,15 @@ Pod::Spec.new do |s|
     ss.pod_target_xcconfig  = { "HEADER_SEARCH_PATHS" => "\"$(PODS_TARGET_SRCROOT)/ReactCommon\" \"$(PODS_ROOT)/RCT-Folly\"" }
   end
 
+  s.subspec "mapbuffer" do |ss|
+    ss.dependency             folly_dep_name, folly_version
+    ss.compiler_flags       = folly_compiler_flags
+    ss.source_files         = "react/renderer/mapbuffer/**/*.{m,mm,cpp,h}"
+    ss.exclude_files        = "react/renderer/mapbuffer/tests"
+    ss.header_dir           = "react/renderer/mapbuffer"
+    ss.pod_target_xcconfig  = { "HEADER_SEARCH_PATHS" => "\"$(PODS_TARGET_SRCROOT)/ReactCommon\" \"$(PODS_ROOT)/RCT-Folly\"" }
+  end
+
   s.subspec "mounting" do |ss|
     ss.dependency             folly_dep_name, folly_version
     ss.compiler_flags       = folly_compiler_flags
diff --git a/packages/rn-tester/Podfile.lock b/packages/rn-tester/Podfile.lock
index fc36e9a1a7ce40..564818c313b8c3 100644
--- a/packages/rn-tester/Podfile.lock
+++ b/packages/rn-tester/Podfile.lock
@@ -295,6 +295,7 @@ PODS:
     - React-Fabric/debug_renderer (= 1000.0.0)
     - React-Fabric/imagemanager (= 1000.0.0)
     - React-Fabric/leakchecker (= 1000.0.0)
+    - React-Fabric/mapbuffer (= 1000.0.0)
     - React-Fabric/mounting (= 1000.0.0)
     - React-Fabric/runtimescheduler (= 1000.0.0)
     - React-Fabric/scheduler (= 1000.0.0)
@@ -522,6 +523,14 @@ PODS:
     - React-jsi (= 1000.0.0)
     - React-jsiexecutor (= 1000.0.0)
     - ReactCommon/turbomodule/core (= 1000.0.0)
+  - React-Fabric/mapbuffer (1000.0.0):
+    - RCT-Folly/Fabric (= 2021.07.22.00)
+    - RCTRequired (= 1000.0.0)
+    - RCTTypeSafety (= 1000.0.0)
+    - React-graphics (= 1000.0.0)
+    - React-jsi (= 1000.0.0)
+    - React-jsiexecutor (= 1000.0.0)
+    - ReactCommon/turbomodule/core (= 1000.0.0)
   - React-Fabric/mounting (1000.0.0):
     - RCT-Folly/Fabric (= 2021.07.22.00)
     - RCTRequired (= 1000.0.0)
@@ -924,7 +933,7 @@ SPEC CHECKSUMS:
   React-Core: ce4282fb714ffbe444b84d296d1728eaee4d0e9f
   React-CoreModules: 675170bccf156da3a3348e04e2036ce401b2010d
   React-cxxreact: 7276467c246302fedf598cc40d7003896ddb20ba
-  React-Fabric: b49c8e76c926b5b6b708802759b27dd6e02bb4bc
+  React-Fabric: a696c92be541f2015b9777956a3e7df8a8f34aed
   React-graphics: 5ccc9cc0d91794fd42bc1c693e9aea207554bbef
   React-jsi: a042596cb558abea721ab5e23cb175647610a73d
   React-jsiexecutor: f7fbac5dff7e7ff110a66edf2626b4f4f4600ef5