diff --git a/docs/changelog.md b/docs/changelog.md
index 0c82d19d88..46b490ba1f 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -6,6 +6,7 @@ Change Log
 * Fix: Fix extension function imports (#1814).
 * Fix: Omit implicit modifiers on FileSpec.scriptBuilder (#1813).
 * Fix: Fix trailing newline in PropertySpec (#1827).
+Change: kotlinx-metadata 0.9.0. Note that the `KotlinClassMetadata .read` is deprecated in 0.9.0 and replaced with `readStrict` (#1830).
 
 ## Version 1.16.0
 
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 85c61405d4..fc72c6803b 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -39,7 +39,7 @@ kotlin-compilerEmbeddable = { module = "org.jetbrains.kotlin:kotlin-compiler-emb
 kotlin-annotationProcessingEmbeddable = { module = "org.jetbrains.kotlin:kotlin-annotation-processing-embeddable", version.ref = "kotlin" }
 kotlin-reflect = { module = "org.jetbrains.kotlin:kotlin-reflect", version.ref = "kotlin" }
 kotlin-junit = { module = "org.jetbrains.kotlin:kotlin-test-junit", version.ref = "kotlin" }
-kotlin-metadata = { module = "org.jetbrains.kotlinx:kotlinx-metadata-jvm", version = "0.8.0" }
+kotlin-metadata = { module = "org.jetbrains.kotlinx:kotlinx-metadata-jvm", version = "0.9.0" }
 
 ksp = { module = "com.google.devtools.ksp:symbol-processing", version.ref = "ksp" }
 ksp-api = { module = "com.google.devtools.ksp:symbol-processing-api", version.ref = "ksp" }
diff --git a/interop/kotlinx-metadata/src/main/kotlin/com/squareup/kotlinpoet/metadata/KotlinPoetMetadata.kt b/interop/kotlinx-metadata/src/main/kotlin/com/squareup/kotlinpoet/metadata/KotlinPoetMetadata.kt
index bae2474777..08338983cc 100644
--- a/interop/kotlinx-metadata/src/main/kotlin/com/squareup/kotlinpoet/metadata/KotlinPoetMetadata.kt
+++ b/interop/kotlinx-metadata/src/main/kotlin/com/squareup/kotlinpoet/metadata/KotlinPoetMetadata.kt
@@ -85,7 +85,7 @@ public inline fun <reified T : KotlinClassMetadata> Metadata.toKotlinClassMetada
  */
 @KotlinPoetMetadataPreview
 public fun Metadata.readKotlinClassMetadata(): KotlinClassMetadata {
-  val metadata = KotlinClassMetadata.read(asClassHeader())
+  val metadata = KotlinClassMetadata.readStrict(asClassHeader())
   checkNotNull(metadata) {
     "Could not parse metadata! Try bumping kotlinpoet and/or kotlinx-metadata version."
   }
diff --git a/interop/kotlinx-metadata/src/main/kotlin/com/squareup/kotlinpoet/metadata/specs/KotlinPoetMetadataSpecs.kt b/interop/kotlinx-metadata/src/main/kotlin/com/squareup/kotlinpoet/metadata/specs/KotlinPoetMetadataSpecs.kt
index 88c7b25bb1..7317a74050 100644
--- a/interop/kotlinx-metadata/src/main/kotlin/com/squareup/kotlinpoet/metadata/specs/KotlinPoetMetadataSpecs.kt
+++ b/interop/kotlinx-metadata/src/main/kotlin/com/squareup/kotlinpoet/metadata/specs/KotlinPoetMetadataSpecs.kt
@@ -93,8 +93,6 @@ import kotlinx.metadata.Modality
 import kotlinx.metadata.Visibility
 import kotlinx.metadata.declaresDefaultValue
 import kotlinx.metadata.hasAnnotations
-import kotlinx.metadata.hasGetter
-import kotlinx.metadata.hasSetter
 import kotlinx.metadata.isConst
 import kotlinx.metadata.isCrossinline
 import kotlinx.metadata.isData
@@ -648,49 +646,45 @@ private fun KmProperty.toPropertySpec(
   val returnTypeName = returnType.toTypeName(typeParamResolver)
   val mutableAnnotations = mutableListOf<AnnotationSpec>()
   if (containerData != null && propertyData != null) {
-    if (hasGetter) {
-      getterSignature?.let { getterSignature ->
-        if (!containerData.isInterface &&
-          modality != Modality.OPEN && modality != Modality.ABSTRACT
+    getterSignature?.let { getterSignature ->
+      if (!containerData.isInterface &&
+        modality != Modality.OPEN && modality != Modality.ABSTRACT
+      ) {
+        // Infer if JvmName was used
+        // We skip interface types or open/abstract properties because they can't have @JvmName.
+        // For annotation properties, kotlinc puts JvmName annotations by default in
+        // bytecode but they're implicit in source, so we expect the simple name for
+        // annotation types.
+        val expectedMetadataName = if (containerData is ClassData &&
+          containerData.declarationContainer.isAnnotation
         ) {
-          // Infer if JvmName was used
-          // We skip interface types or open/abstract properties because they can't have @JvmName.
-          // For annotation properties, kotlinc puts JvmName annotations by default in
-          // bytecode but they're implicit in source, so we expect the simple name for
-          // annotation types.
-          val expectedMetadataName = if (containerData is ClassData &&
-            containerData.declarationContainer.isAnnotation
-          ) {
-            name
-          } else {
-            "get${name.safeCapitalize(Locale.US)}"
-          }
-          getterSignature.jvmNameAnnotation(
-            metadataName = expectedMetadataName,
-            useSiteTarget = UseSiteTarget.GET,
-          )?.let { jvmNameAnnotation ->
-            mutableAnnotations += jvmNameAnnotation
-          }
+          name
+        } else {
+          "get${name.safeCapitalize(Locale.US)}"
+        }
+        getterSignature.jvmNameAnnotation(
+          metadataName = expectedMetadataName,
+          useSiteTarget = UseSiteTarget.GET,
+        )?.let { jvmNameAnnotation ->
+          mutableAnnotations += jvmNameAnnotation
         }
       }
     }
-    if (hasSetter) {
-      setterSignature?.let { setterSignature ->
-        if (containerData is ClassData &&
-          !containerData.declarationContainer.isAnnotation &&
-          !containerData.declarationContainer.isInterface &&
-          classInspector?.supportsNonRuntimeRetainedAnnotations == false &&
-          modality != Modality.OPEN && modality != Modality.ABSTRACT
-        ) {
-          // Infer if JvmName was used
-          // We skip annotation types for this because they can't have vars.
-          // We skip interface types or open/abstract properties because they can't have @JvmName.
-          setterSignature.jvmNameAnnotation(
-            metadataName = "set${name.safeCapitalize(Locale.US)}",
-            useSiteTarget = UseSiteTarget.SET,
-          )?.let { jvmNameAnnotation ->
-            mutableAnnotations += jvmNameAnnotation
-          }
+    setterSignature?.let { setterSignature ->
+      if (containerData is ClassData &&
+        !containerData.declarationContainer.isAnnotation &&
+        !containerData.declarationContainer.isInterface &&
+        classInspector?.supportsNonRuntimeRetainedAnnotations == false &&
+        modality != Modality.OPEN && modality != Modality.ABSTRACT
+      ) {
+        // Infer if JvmName was used
+        // We skip annotation types for this because they can't have vars.
+        // We skip interface types or open/abstract properties because they can't have @JvmName.
+        setterSignature.jvmNameAnnotation(
+          metadataName = "set${name.safeCapitalize(Locale.US)}",
+          useSiteTarget = UseSiteTarget.SET,
+        )?.let { jvmNameAnnotation ->
+          mutableAnnotations += jvmNameAnnotation
         }
       }
     }
@@ -777,16 +771,16 @@ private fun KmProperty.toPropertySpec(
       // since the delegate handles it
       // vals with initialized constants have a getter in bytecode but not a body in kotlin source
       val modifierSet = modifiers.toSet()
-      if (hasGetter && !isDelegated && modality != Modality.ABSTRACT) {
+      if (!isDelegated && modality != Modality.ABSTRACT) {
         propertyAccessor(
           modifierSet,
-          getter,
+          this@toPropertySpec.getter,
           FunSpec.getterBuilder().addStatement(NOT_IMPLEMENTED),
           isOverride,
         )?.let(::getter)
       }
-      if (hasSetter && !isDelegated && modality != Modality.ABSTRACT) {
-        propertyAccessor(modifierSet, setter!!, FunSpec.setterBuilder(), isOverride)?.let(::setter)
+      if (setter != null && !isDelegated && modality != Modality.ABSTRACT) {
+        propertyAccessor(modifierSet, this@toPropertySpec.setter!!, FunSpec.setterBuilder(), isOverride)?.let(::setter)
       }
     }
     .tag(this)