diff --git a/src/main/kotlin/org/ollide/java2smali/Class2DexHelper.kt b/src/main/kotlin/org/ollide/java2smali/Class2DexHelper.kt
index aa8aae7..98018f1 100644
--- a/src/main/kotlin/org/ollide/java2smali/Class2DexHelper.kt
+++ b/src/main/kotlin/org/ollide/java2smali/Class2DexHelper.kt
@@ -23,6 +23,7 @@ object Class2DexHelper {
         arguments.outName = outputDexPath
         arguments.strictNameCheck = false
         arguments.fileNames = inputClassFilePaths
+        arguments.minSdkVersion = 28
 
         return try {
             val returnCode = Main(dxContext).runDx(arguments)
diff --git a/src/main/kotlin/org/ollide/java2smali/Dex2SmaliHelper.kt b/src/main/kotlin/org/ollide/java2smali/Dex2SmaliHelper.kt
index 295c94c..41f0159 100644
--- a/src/main/kotlin/org/ollide/java2smali/Dex2SmaliHelper.kt
+++ b/src/main/kotlin/org/ollide/java2smali/Dex2SmaliHelper.kt
@@ -20,7 +20,7 @@ object Dex2SmaliHelper {
      */
     @Throws(IOException::class)
     fun disassembleDexFile(dexFilePath: String, outputDir: String) {
-        val opCodes = Opcodes.getDefault()
+        val opCodes = Opcodes.forApi(28)
         val dexBackedDexFile = DexFileFactory.loadDexFile(dexFilePath, opCodes)
 
         val options = BaksmaliOptions()