diff --git a/packages/react-native/ReactAndroid/api/ReactAndroid.api b/packages/react-native/ReactAndroid/api/ReactAndroid.api
index 19707cd5fdd..eb8bc1df335 100644
--- a/packages/react-native/ReactAndroid/api/ReactAndroid.api
+++ b/packages/react-native/ReactAndroid/api/ReactAndroid.api
@@ -6222,11 +6222,11 @@ public abstract interface class com/facebook/react/views/modal/ReactModalHostVie
 	public abstract fun onRequestClose (Landroid/content/DialogInterface;)V
 }
 
-public class com/facebook/react/views/progressbar/ProgressBarShadowNode : com/facebook/react/uimanager/LayoutShadowNode, com/facebook/yoga/YogaMeasureFunction {
+public final class com/facebook/react/views/progressbar/ProgressBarShadowNode : com/facebook/react/uimanager/LayoutShadowNode, com/facebook/yoga/YogaMeasureFunction {
 	public fun <init> ()V
-	public fun getStyle ()Ljava/lang/String;
+	public final fun getStyle ()Ljava/lang/String;
 	public fun measure (Lcom/facebook/yoga/YogaNode;FLcom/facebook/yoga/YogaMeasureMode;FLcom/facebook/yoga/YogaMeasureMode;)J
-	public fun setStyle (Ljava/lang/String;)V
+	public final fun setStyle (Ljava/lang/String;)V
 }
 
 public class com/facebook/react/views/progressbar/ProgressBarShadowNode$$PropsSetter : com/facebook/react/uimanager/ViewManagerPropertyUpdater$ShadowNodeSetter {
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/progressbar/ProgressBarShadowNode.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/progressbar/ProgressBarShadowNode.java
deleted file mode 100644
index ccf057e7ece..00000000000
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/progressbar/ProgressBarShadowNode.java
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-package com.facebook.react.views.progressbar;
-
-import android.util.SparseIntArray;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.ProgressBar;
-import androidx.annotation.Nullable;
-import com.facebook.infer.annotation.Nullsafe;
-import com.facebook.react.uimanager.LayoutShadowNode;
-import com.facebook.react.uimanager.annotations.ReactProp;
-import com.facebook.yoga.YogaMeasureFunction;
-import com.facebook.yoga.YogaMeasureMode;
-import com.facebook.yoga.YogaMeasureOutput;
-import com.facebook.yoga.YogaNode;
-import java.util.HashSet;
-import java.util.Set;
-
-/**
- * Node responsible for holding the style of the ProgressBar, see under {@link
- * android.R.attr.progressBarStyle} for possible styles. ReactProgressBarViewManager manages how
- * this style is applied to the ProgressBar.
- */
-@Nullsafe(Nullsafe.Mode.LOCAL)
-public class ProgressBarShadowNode extends LayoutShadowNode implements YogaMeasureFunction {
-
-  private String mStyle = ReactProgressBarViewManager.DEFAULT_STYLE;
-
-  private final SparseIntArray mHeight;
-  private final SparseIntArray mWidth;
-  private final Set<Integer> mMeasured;
-
-  public ProgressBarShadowNode() {
-    mHeight = new SparseIntArray();
-    mWidth = new SparseIntArray();
-    mMeasured = new HashSet<>();
-    initMeasureFunction();
-  }
-
-  private void initMeasureFunction() {
-    setMeasureFunction(this);
-  }
-
-  public @Nullable String getStyle() {
-    return mStyle;
-  }
-
-  @ReactProp(name = ReactProgressBarViewManager.PROP_STYLE)
-  public void setStyle(@Nullable String style) {
-    mStyle = style == null ? ReactProgressBarViewManager.DEFAULT_STYLE : style;
-  }
-
-  @Override
-  public long measure(
-      YogaNode node,
-      float width,
-      YogaMeasureMode widthMode,
-      float height,
-      YogaMeasureMode heightMode) {
-    final int style = ReactProgressBarViewManager.getStyleFromString(getStyle());
-    if (!mMeasured.contains(style)) {
-      ProgressBar progressBar =
-          ReactProgressBarViewManager.createProgressBar(getThemedContext(), style);
-      final int spec =
-          View.MeasureSpec.makeMeasureSpec(
-              ViewGroup.LayoutParams.WRAP_CONTENT, View.MeasureSpec.UNSPECIFIED);
-      progressBar.measure(spec, spec);
-      mHeight.put(style, progressBar.getMeasuredHeight());
-      mWidth.put(style, progressBar.getMeasuredWidth());
-      mMeasured.add(style);
-    }
-
-    return YogaMeasureOutput.make(mWidth.get(style), mHeight.get(style));
-  }
-}
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/progressbar/ProgressBarShadowNode.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/progressbar/ProgressBarShadowNode.kt
new file mode 100644
index 00000000000..791ab36a340
--- /dev/null
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/progressbar/ProgressBarShadowNode.kt
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+package com.facebook.react.views.progressbar
+
+import android.util.SparseIntArray
+import android.view.View
+import android.view.ViewGroup
+import com.facebook.react.uimanager.LayoutShadowNode
+import com.facebook.react.uimanager.annotations.ReactProp
+import com.facebook.yoga.YogaMeasureFunction
+import com.facebook.yoga.YogaMeasureMode
+import com.facebook.yoga.YogaMeasureOutput
+import com.facebook.yoga.YogaNode
+
+/**
+ * Node responsible for holding the style of the ProgressBar, see under [ ] for possible styles.
+ * ReactProgressBarViewManager manages how this style is applied to the ProgressBar.
+ */
+public class ProgressBarShadowNode : LayoutShadowNode(), YogaMeasureFunction {
+  private val height: SparseIntArray = SparseIntArray()
+  private val width: SparseIntArray = SparseIntArray()
+  private val measured: MutableSet<Int> = HashSet()
+
+  init {
+    setMeasureFunction(this)
+  }
+
+  @set:ReactProp(name = ReactProgressBarViewManager.PROP_STYLE)
+  public var style: String? = ReactProgressBarViewManager.DEFAULT_STYLE
+    set(value) {
+      field = value ?: ReactProgressBarViewManager.DEFAULT_STYLE
+    }
+
+  override fun measure(
+      node: YogaNode,
+      width: Float,
+      widthMode: YogaMeasureMode,
+      height: Float,
+      heightMode: YogaMeasureMode
+  ): Long {
+    val style = ReactProgressBarViewManager.getStyleFromString(style)
+    if (!measured.contains(style)) {
+      val progressBar = ReactProgressBarViewManager.createProgressBar(themedContext, style)
+      val spec =
+          View.MeasureSpec.makeMeasureSpec(
+              ViewGroup.LayoutParams.WRAP_CONTENT, View.MeasureSpec.UNSPECIFIED)
+      progressBar.measure(spec, spec)
+      this.height.put(style, progressBar.measuredHeight)
+      this.width.put(style, progressBar.measuredWidth)
+      measured.add(style)
+    }
+    return YogaMeasureOutput.make(this.width[style], this.height[style])
+  }
+}