diff --git a/React/third-party.xcconfig b/React/third-party.xcconfig
index e4262ca0387954..2c163835cfaf4b 100644
--- a/React/third-party.xcconfig
+++ b/React/third-party.xcconfig
@@ -8,5 +8,5 @@
 // LICENSE file in the root directory of this source tree.
 //
 
-HEADER_SEARCH_PATHS = $(SRCROOT)/../third-party/boost_1_76_0 $(SRCROOT)/../third-party/folly-2021.07.22.00 $(SRCROOT)/../third-party/glog-0.3.5/src
+HEADER_SEARCH_PATHS = $(SRCROOT)/../third-party/boost_1_81_0 $(SRCROOT)/../third-party/folly-2021.07.22.00 $(SRCROOT)/../third-party/glog-0.3.5/src
 OTHER_CFLAGS = -DFOLLY_NO_CONFIG -DFOLLY_MOBILE=1 -DFOLLY_USE_LIBCPP=1
diff --git a/ReactAndroid/Android-prebuilt.mk b/ReactAndroid/Android-prebuilt.mk
index 269cf0ac0aa522..0b8e9b9bccc8ca 100644
--- a/ReactAndroid/Android-prebuilt.mk
+++ b/ReactAndroid/Android-prebuilt.mk
@@ -34,7 +34,7 @@ include $(CLEAR_VARS)
 LOCAL_MODULE := folly_runtime
 LOCAL_SRC_FILES := $(REACT_NDK_EXPORT_DIR)/$(TARGET_ARCH_ABI)/libfolly_runtime.so
 LOCAL_EXPORT_C_INCLUDES := \
-  $(THIRD_PARTY_NDK_DIR)/boost/boost_1_76_0 \
+  $(THIRD_PARTY_NDK_DIR)/boost/boost_1_81_0 \
   $(THIRD_PARTY_NDK_DIR)/double-conversion \
   $(THIRD_PARTY_NDK_DIR)/folly
 # Note: Sync with folly/Android.mk.
diff --git a/ReactAndroid/build.gradle b/ReactAndroid/build.gradle
index 52b1de3f872f6f..7c7124b6214314 100644
--- a/ReactAndroid/build.gradle
+++ b/ReactAndroid/build.gradle
@@ -37,7 +37,7 @@ def thirdPartyNdkDir = new File("$buildDir/third-party-ndk")
 def reactNativeRootDir = projectDir.parent
 
 // You need to have following folders in this directory:
-//   - boost_1_76_0
+//   - boost_1_81_0
 //   - double-conversion-1.1.6
 //   - folly-deprecate-dynamic-initializer
 //   - glog-0.3.5
diff --git a/ReactAndroid/cmake-utils/Android-prebuilt.cmake b/ReactAndroid/cmake-utils/Android-prebuilt.cmake
index 03be4be02aa8c2..abced5c4c3ac62 100644
--- a/ReactAndroid/cmake-utils/Android-prebuilt.cmake
+++ b/ReactAndroid/cmake-utils/Android-prebuilt.cmake
@@ -49,7 +49,7 @@ set_target_properties(folly_runtime
         ${REACT_NDK_EXPORT_DIR}/${ANDROID_ABI}/libfolly_runtime.so)
 target_include_directories(folly_runtime
         INTERFACE
-        ${THIRD_PARTY_NDK_DIR}/boost/boost_1_76_0
+        ${THIRD_PARTY_NDK_DIR}/boost/boost_1_81_0
         ${THIRD_PARTY_NDK_DIR}/double-conversion
         ${THIRD_PARTY_NDK_DIR}/folly)
 target_compile_options(folly_runtime
diff --git a/ReactAndroid/gradle.properties b/ReactAndroid/gradle.properties
index bc7d1b7b4f9d7c..e9f9aa2e95293c 100644
--- a/ReactAndroid/gradle.properties
+++ b/ReactAndroid/gradle.properties
@@ -26,7 +26,7 @@ SO_LOADER_VERSION=0.10.4
 SWIPEREFRESH_LAYOUT_VERSION=1.0.0
 
 # Native Dependency Versions
-BOOST_VERSION=1_76_0
+BOOST_VERSION=1_81_0
 DOUBLE_CONVERSION_VERSION=1.1.6
 FMT_VERSION=6.2.1
 FOLLY_VERSION=2021.07.22.00
diff --git a/ReactAndroid/src/main/jni/third-party/boost/CMakeLists.txt b/ReactAndroid/src/main/jni/third-party/boost/CMakeLists.txt
index 3d0cbec7e50956..55143e2c2bb348 100644
--- a/ReactAndroid/src/main/jni/third-party/boost/CMakeLists.txt
+++ b/ReactAndroid/src/main/jni/third-party/boost/CMakeLists.txt
@@ -18,5 +18,5 @@ add_library(boost STATIC ${boostasm_SRC})
 
 set_target_properties(boost PROPERTIES LINKER_LANGUAGE CXX)
 
-target_include_directories(boost PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/boost_1_76_0)
+target_include_directories(boost PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/boost_1_81_0)
 
diff --git a/ReactCommon/cxxreact/React-cxxreact.podspec b/ReactCommon/cxxreact/React-cxxreact.podspec
index c4498e9d3f1f80..c4477662b675e5 100644
--- a/ReactCommon/cxxreact/React-cxxreact.podspec
+++ b/ReactCommon/cxxreact/React-cxxreact.podspec
@@ -36,7 +36,7 @@ Pod::Spec.new do |s|
   s.pod_target_xcconfig    = { "HEADER_SEARCH_PATHS" => "\"$(PODS_ROOT)/boost\" \"$(PODS_ROOT)/RCT-Folly\" \"$(PODS_ROOT)/DoubleConversion\"" }
   s.header_dir             = "cxxreact"
 
-  s.dependency "boost", "1.76.0"
+  s.dependency "boost", "1.81.0"
   s.dependency "DoubleConversion"
   s.dependency "RCT-Folly", folly_version
   s.dependency "glog"
diff --git a/ReactCommon/jsi/React-jsi.podspec b/ReactCommon/jsi/React-jsi.podspec
index 0e2ee388889c50..b25298e17e3652 100644
--- a/ReactCommon/jsi/React-jsi.podspec
+++ b/ReactCommon/jsi/React-jsi.podspec
@@ -37,7 +37,7 @@ Pod::Spec.new do |s|
   s.header_dir             = "jsi"
   s.default_subspec        = "Default"
 
-  s.dependency "boost", "1.76.0"
+  s.dependency "boost", "1.81.0"
   s.dependency "DoubleConversion"
   s.dependency "RCT-Folly", folly_version
   s.dependency "glog"
diff --git a/third-party-podspecs/boost.podspec b/third-party-podspecs/boost.podspec
index 461a26b046785b..07d7e1401aac48 100644
--- a/third-party-podspecs/boost.podspec
+++ b/third-party-podspecs/boost.podspec
@@ -5,14 +5,13 @@
 
 Pod::Spec.new do |spec|
   spec.name = 'boost'
-  spec.version = '1.76.0'
+  spec.version = '1.81.0'
   spec.license = { :type => 'Boost Software License', :file => "LICENSE_1_0.txt" }
   spec.homepage = 'http://www.boost.org'
   spec.summary = 'Boost provides free peer-reviewed portable C++ source libraries.'
   spec.authors = 'Rene Rivera'
-  # PodToBuild does not support tar bz2 compression so we use tar.gz instead.
-  spec.source = { :http => 'https://boostorg.jfrog.io/artifactory/main/release/1.76.0/source/boost_1_76_0.tar.gz',
-                  :sha256 => '7bd7ddceec1a1dfdcbdb3e609b60d01739c38390a5f956385a12f3122049f0ca' } # jhgg was here
+  spec.source = { :http => 'https://boostorg.jfrog.io/artifactory/main/release/1.81.0/source/boost_1_81_0.tar.gz',
+                  :sha256 => '205666dea9f6a7cfed87c7a6dfbeb52a2c1b9de55712c9c1a87735d7181452b6' }
 
   # Pinning to the same version as React.podspec.
   spec.platforms = { :ios => '11.0', :tvos => '11.0' }