diff --git a/packages/react-native/gradle/libs.versions.toml b/packages/react-native/gradle/libs.versions.toml
index f0902b7441de..3f151489852e 100644
--- a/packages/react-native/gradle/libs.versions.toml
+++ b/packages/react-native/gradle/libs.versions.toml
@@ -43,7 +43,7 @@ yoga-proguard-annotations = "1.19.0"
 boost="1_83_0"
 doubleconversion="1.1.6"
 fastFloat="8.0.0"
-fmt="11.0.2"
+fmt="12.1.0" # [macOS]
 folly="2024.11.18.00"
 glog="0.3.5"
 gflags="2.2.0"
diff --git a/packages/react-native/third-party-podspecs/RCT-Folly.podspec b/packages/react-native/third-party-podspecs/RCT-Folly.podspec
index 8852179b6ce2..91473b182510 100644
--- a/packages/react-native/third-party-podspecs/RCT-Folly.podspec
+++ b/packages/react-native/third-party-podspecs/RCT-Folly.podspec
@@ -25,7 +25,7 @@ Pod::Spec.new do |spec|
   spec.dependency "DoubleConversion"
   spec.dependency "glog"
   spec.dependency "fast_float", "8.0.0"
-  spec.dependency "fmt", "11.0.2"
+  spec.dependency "fmt", "12.1.0" # [macOS]
   spec.compiler_flags = '-Wno-documentation -faligned-new'
   spec.source_files = 'folly/String.cpp',
                       'folly/Conv.cpp',
diff --git a/packages/react-native/third-party-podspecs/fmt.podspec b/packages/react-native/third-party-podspecs/fmt.podspec
index 2f38990e226c..32469c0502ad 100644
--- a/packages/react-native/third-party-podspecs/fmt.podspec
+++ b/packages/react-native/third-party-podspecs/fmt.podspec
@@ -8,14 +8,14 @@ fmt_git_url = fmt_config[:git]
 
 Pod::Spec.new do |spec|
   spec.name = "fmt"
-  spec.version = "11.0.2"
+  spec.version = "12.1.0" # [macOS]
   spec.license = { :type => "MIT" }
   spec.homepage = "https://github.com/fmtlib/fmt"
   spec.summary = "{fmt} is an open-source formatting library for C++. It can be used as a safe and fast alternative to (s)printf and iostreams."
   spec.authors = "The fmt contributors"
   spec.source = {
     :git => fmt_git_url,
-    :tag => "11.0.2"
+    :tag => "12.1.0" # [macOS]
   }
   spec.pod_target_xcconfig = {
     "CLANG_CXX_LANGUAGE_STANDARD" => rct_cxx_language_standard(),
diff --git a/packages/rn-tester/Podfile.lock b/packages/rn-tester/Podfile.lock
index eee3c61b0996..0e75d32336ff 100644
--- a/packages/rn-tester/Podfile.lock
+++ b/packages/rn-tester/Podfile.lock
@@ -3,7 +3,7 @@ PODS:
   - DoubleConversion (1.1.6)
   - fast_float (8.0.0)
   - FBLazyVector (0.81.2)
-  - fmt (11.0.2)
+  - fmt (12.1.0)
   - glog (0.3.5)
   - hermes-engine (0.81.6):
     - hermes-engine/Pre-built (= 0.81.6)
@@ -97,20 +97,20 @@ PODS:
     - boost
     - DoubleConversion
     - fast_float (= 8.0.0)
-    - fmt (= 11.0.2)
+    - fmt (= 12.1.0)
     - glog
     - RCT-Folly/Default (= 2024.11.18.00)
   - RCT-Folly/Default (2024.11.18.00):
     - boost
     - DoubleConversion
     - fast_float (= 8.0.0)
-    - fmt (= 11.0.2)
+    - fmt (= 12.1.0)
     - glog
   - RCT-Folly/Fabric (2024.11.18.00):
     - boost
     - DoubleConversion
     - fast_float (= 8.0.0)
-    - fmt (= 11.0.2)
+    - fmt (= 12.1.0)
     - glog
   - RCTDeprecation (0.81.2)
   - RCTRequired (0.81.2)
@@ -2657,7 +2657,7 @@ SPEC CHECKSUMS:
   DoubleConversion: d31b1eb37f6d6f456530c4fd9124b857d6889cab
   fast_float: 20817c22759af6ac8d4d67e6e059b8b499953656
   FBLazyVector: 0e3076dbb16169b0afc2d701a24a526423b5e76b
-  fmt: 24e7591456deb60b4a77518f83d9a916ac84223f
+  fmt: 4cf0c5ec5864511c96d8d4bd7b03c3c69040af06
   glog: 0b31c25149b9d350b2666c7d459229861a00ec07
   hermes-engine: 7219f6e751ad6ec7f3d7ec121830ee34dae40749
   MyNativeView: a2a5964b793ce0562be1dde9984c77cf1c5c8e94
@@ -2731,6 +2731,7 @@ SPEC CHECKSUMS:
   ReactCommon: 9f8189efbc1aa52926df2791a2e47b3340353849
   ReactCommon-Samples: 6078c0e6ccec44c0a00d80b7a8c582f0bb96efda
   ScreenshotManager: 95c76225bd23a34cfb6a7d172f371eac770a32e2
+
   SocketRocket: d4aabe649be1e368d1318fdf28a022d714d65748
   Yoga: 6048a55441c73f8e3916a8eac6b83886708c77f9
 
diff --git a/scripts/releases/ios-prebuild/configuration.js b/scripts/releases/ios-prebuild/configuration.js
index 5719eaf3d13d..180df44fb322 100644
--- a/scripts/releases/ios-prebuild/configuration.js
+++ b/scripts/releases/ios-prebuild/configuration.js
@@ -80,9 +80,9 @@ const dependencies /*: $ReadOnlyArray<Dependency> */ = [
   },
   {
     name: 'fmt',
-    version: '11.0.2',
+    version: '12.1.0', // [macOS]
     url: new URL(
-      'https://github.com/fmtlib/fmt/archive/refs/tags/11.0.2.tar.gz',
+      'https://github.com/fmtlib/fmt/archive/refs/tags/12.1.0.tar.gz', // [macOS]
     ),
     files: {
       sources: ['src/format.cc', 'include/fmt/*.h'],