diff --git a/packages/react-native/React/Fabric/Mounting/RCTComponentViewFactory.mm b/packages/react-native/React/Fabric/Mounting/RCTComponentViewFactory.mm
index 6f7cc61a8e7..c696184983f 100644
--- a/packages/react-native/React/Fabric/Mounting/RCTComponentViewFactory.mm
+++ b/packages/react-native/React/Fabric/Mounting/RCTComponentViewFactory.mm
@@ -132,18 +132,18 @@ static Class<RCTComponentViewProtocol> RCTComponentViewClassWithName(const char
 
   // Fallback 1: Call provider function for component view class.
   Class<RCTComponentViewProtocol> klass = RCTComponentViewClassWithName(name.c_str());
-  if (klass) {
+  if (klass != nullptr) {
     [self registerComponentViewClass:klass];
     return;
   }
 
   // Fallback 2: Ask the provider and check in the dictionary provided
-  if (self.thirdPartyFabricComponentsProvider) {
+  if (self.thirdPartyFabricComponentsProvider != nullptr) {
     // Test whether a provider has been passed to avoid potentially expensive conversions
     // between C++ and ObjC strings.
     NSString *objcName = [NSString stringWithCString:name.c_str() encoding:NSUTF8StringEncoding];
     klass = self.thirdPartyFabricComponentsProvider.thirdPartyFabricComponents[objcName];
-    if (klass) {
+    if (klass != nullptr) {
       [self registerComponentViewClass:klass];
       return;
     }
diff --git a/packages/react-native/React/Fabric/Utils/PlatformRunLoopObserver.mm b/packages/react-native/React/Fabric/Utils/PlatformRunLoopObserver.mm
index 65f48b48a4f..c11d48cdb17 100644
--- a/packages/react-native/React/Fabric/Utils/PlatformRunLoopObserver.mm
+++ b/packages/react-native/React/Fabric/Utils/PlatformRunLoopObserver.mm
@@ -54,7 +54,7 @@ PlatformRunLoopObserver::PlatformRunLoopObserver(
   mainRunLoopObserver_ = CFRunLoopObserverCreateWithHandler(
       NULL /* allocator */,
       toCFRunLoopActivity(activities_) /* activities */,
-      true /* repeats */,
+      1u /* repeats */,
       0 /* order */,
       ^(CFRunLoopObserverRef observer, CFRunLoopActivity activity) {
         auto strongOwner = owner.lock();
diff --git a/packages/react-native/React/Fabric/Utils/RCTBoxShadow.mm b/packages/react-native/React/Fabric/Utils/RCTBoxShadow.mm
index 54f3b79894c..54633558d17 100644
--- a/packages/react-native/React/Fabric/Utils/RCTBoxShadow.mm
+++ b/packages/react-native/React/Fabric/Utils/RCTBoxShadow.mm
@@ -50,7 +50,7 @@ static CGRect insetRect(CGRect rect, CGFloat left, CGFloat top, CGFloat right, C
 static CGColorRef colorRefFromSharedColor(const SharedColor &color)
 {
   CGColorRef colorRef = RCTUIColorFromSharedColor(color).CGColor;
-  return colorRef ? colorRef : [UIColor blackColor].CGColor;
+  return (colorRef != nullptr) ? colorRef : [UIColor blackColor].CGColor;
 }
 
 static CALayer *initBoxShadowLayer(const BoxShadow &shadow, CGSize layerSize)