diff --git a/packages/react-native/Libraries/vendor/emitter/EventEmitter.js b/packages/react-native/Libraries/vendor/emitter/EventEmitter.js
index 9f60d3e8ee31..6014db5bd7c9 100644
--- a/packages/react-native/Libraries/vendor/emitter/EventEmitter.js
+++ b/packages/react-native/Libraries/vendor/emitter/EventEmitter.js
@@ -149,6 +149,7 @@ export default class EventEmitter<
       // $FlowFixMe[incompatible-type]
       this.#registry = {};
     } else {
+      // $FlowFixMe[cannot-write]
       delete this.#registry[eventType];
     }
   }
@@ -178,6 +179,7 @@ function allocate<
     registry[eventType];
   if (registrations == null) {
     registrations = new Set();
+    // $FlowFixMe[cannot-write]
     registry[eventType] = registrations;
   }
   return registrations;
diff --git a/private/react-native-fantom/runner/getFantomTestConfigs.js b/private/react-native-fantom/runner/getFantomTestConfigs.js
index d86d7c91617c..91d88b9e84c3 100644
--- a/private/react-native-fantom/runner/getFantomTestConfigs.js
+++ b/private/react-native-fantom/runner/getFantomTestConfigs.js
@@ -121,6 +121,7 @@ export function getOverrides(
       config.flags[flagType],
     )) {
       if (flagValue !== DEFAULT_FEATURE_FLAGS[flagType][flagName]) {
+        // $FlowFixMe[cannot-write]
         flags[flagType][flagName] = flagValue;
       }
     }
@@ -356,6 +357,7 @@ export default function getFantomTestConfigs(
             flagConfig.defaultValue,
             rawValue,
           );
+          // $FlowFixMe[cannot-write]
           config.flags.common[name] = value;
         }
       } else if (ReactNativeFeatureFlags.jsOnly[name]) {
@@ -375,6 +377,7 @@ export default function getFantomTestConfigs(
             flagConfig.defaultValue,
             rawValue,
           );
+          // $FlowFixMe[cannot-write]
           config.flags.jsOnly[name] = value;
         }
       } else {