diff --git a/ios/RCTMarkdownUtils.mm b/ios/RCTMarkdownUtils.mm
index 2338a222..913b718b 100644
--- a/ios/RCTMarkdownUtils.mm
+++ b/ios/RCTMarkdownUtils.mm
@@ -28,6 +28,9 @@ - (NSAttributedString *)parseMarkdown:(nullable NSAttributedString *)input withA
         }
 
         static std::shared_ptr<jsi::Runtime> runtime;
+        static std::mutex runtimeMutex;
+        auto lock = std::lock_guard<std::mutex>(runtimeMutex);
+
         if (runtime == nullptr) {
             NSString *path = [[NSBundle mainBundle] pathForResource:@"react-native-live-markdown-parser" ofType:@"js"];
             assert(path != nil && "[react-native-live-markdown] Markdown parser bundle not found");
diff --git a/package.json b/package.json
index 848e5628..37b46bf4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@expensify/react-native-live-markdown",
-  "version": "0.1.99",
+  "version": "0.1.100",
   "description": "Drop-in replacement for React Native's TextInput component with Markdown formatting.",
   "main": "lib/commonjs/index",
   "module": "lib/module/index",