diff --git a/examples/dart_only/pubspec.yaml b/examples/dart_only/pubspec.yaml
index 2fb5136..eb8641b 100644
--- a/examples/dart_only/pubspec.yaml
+++ b/examples/dart_only/pubspec.yaml
@@ -10,5 +10,5 @@ dependencies:
   native_toolchain_rust: ^1.0.4+0
 
 dev_dependencies:
-  ffigen: ^20.1.0
+  ffigen: ^21.0.0
   test: ^1.29.0
diff --git a/examples/flutter/pubspec.yaml b/examples/flutter/pubspec.yaml
index 6b47fe6..0f6703c 100644
--- a/examples/flutter/pubspec.yaml
+++ b/examples/flutter/pubspec.yaml
@@ -12,7 +12,7 @@ dependencies:
   native_toolchain_rust: ^1.0.4+0
 
 dev_dependencies:
-  ffigen: ^20.1.0
+  ffigen: ^21.0.0
   flutter_test:
     sdk: flutter
   integration_test:
diff --git a/pubspec.lock b/pubspec.lock
index bc521fb..5005f02 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -181,10 +181,10 @@ packages:
     dependency: transitive
     description:
       name: ffigen
-      sha256: b7803707faeec4ce3c1b0c2274906504b796e3b70ad573577e72333bd1c9b3ba
+      sha256: "56fc0be88937409839a59c133dfdee4165e80da324c9e39f59013060249ffb44"
       url: "https://pub.dev"
     source: hosted
-    version: "20.1.1"
+    version: "21.0.0"
   file:
     dependency: transitive
     description:
@@ -378,6 +378,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.3"
+  native_toolchain_c:
+    dependency: transitive
+    description:
+      name: native_toolchain_c
+      sha256: f9c168717100ae6d9fee9ffb0be379bf1f8b26b0f6bcbd4fdddcd931993a6a72
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.19.2"
   node_preamble:
     dependency: transitive
     description: