diff --git a/.github/workflows/unit-tests-android.yml b/.github/workflows/unit-tests-android.yml
index d2b6a21e..b7e5dc84 100644
--- a/.github/workflows/unit-tests-android.yml
+++ b/.github/workflows/unit-tests-android.yml
@@ -11,8 +11,7 @@ on:
 jobs:
   tests-android:
     name: Android Unit Tests
-    runs-on: macos-14 # m1 mac
-    # runs-on: ubuntu-latest # Uncomment to run locally via act
+    runs-on: macos-12
 
     steps:
       - uses: actions/checkout@v3
@@ -22,10 +21,6 @@ jobs:
         with:
           node-version: 18
 
-      # Uncomment to run workflow locally via act
-      # - name: Install yarn
-      #   run: npm install -g yarn
-
       - name: Install node_modules
         working-directory: example
         run: yarn install && yarn rn-setup
@@ -34,12 +29,11 @@ jobs:
         uses: actions/setup-java@v2
         with:
           java-version: '17'
-          architecture: x64
           distribution: 'zulu'
 
       - name: Use Android SDK
         uses: android-actions/setup-android@v2
 
       - name: Run Android unit tests
-        run: ./gradlew testDebugUnitTest --stacktrace --no-daemon
         working-directory: lib/android
+        run: ./gradlew testDebugUnitTest --stacktrace --no-daemon
diff --git a/lib/android/gradle.properties b/lib/android/gradle.properties
index 06a5461a..5ca30574 100644
--- a/lib/android/gradle.properties
+++ b/lib/android/gradle.properties
@@ -1,4 +1,4 @@
-Ldk_kotlinVersion=1.8.20
+Ldk_kotlinVersion=1.6.10
 Ldk_compileSdkVersion=29
 Ldk_targetSdkVersion=29
 android.useAndroidX=true
\ No newline at end of file
diff --git a/lib/android/libs/ldk-java.jar b/lib/android/libs/ldk-java.jar
index 9fe99b1d..bc9bbefe 100644
Binary files a/lib/android/libs/ldk-java.jar and b/lib/android/libs/ldk-java.jar differ
diff --git a/lib/android/src/main/java/com/reactnativeldk/LdkModule.kt b/lib/android/src/main/java/com/reactnativeldk/LdkModule.kt
index c0d1904e..2d76fac9 100644
--- a/lib/android/src/main/java/com/reactnativeldk/LdkModule.kt
+++ b/lib/android/src/main/java/com/reactnativeldk/LdkModule.kt
@@ -1145,7 +1145,7 @@ class LdkModule(reactContext: ReactApplicationContext) : ReactContextBaseJavaMod
 
         val output = TxOut(outputValue.toLong(), outputScriptPubKey.hexa())
         val outpoint = OutPoint.of(outpointTxId.hexa().reversedArray(), outpointIndex.toInt().toShort())
-        val descriptor = SpendableOutputDescriptor.static_output(outpoint, output, byteArrayOf())
+        val descriptor = SpendableOutputDescriptor.static_output(outpoint, output, ByteArray(32))
 
         val ldkDescriptors: MutableList<SpendableOutputDescriptor> = arrayListOf()
         ldkDescriptors.add(descriptor)
diff --git a/lib/android/src/test/java/com/reactnativeldk/LdkModuleTest.kt b/lib/android/src/test/java/com/reactnativeldk/LdkModuleTest.kt
index 3a323ac8..cb44082a 100644
--- a/lib/android/src/test/java/com/reactnativeldk/LdkModuleTest.kt
+++ b/lib/android/src/test/java/com/reactnativeldk/LdkModuleTest.kt
@@ -16,7 +16,6 @@ import org.mockito.kotlin.any
 import org.mockito.kotlin.check
 import org.mockito.kotlin.doReturn
 import org.mockito.kotlin.eq
-import org.mockito.kotlin.isA
 import org.mockito.kotlin.isNull
 import org.mockito.kotlin.mock
 import org.mockito.kotlin.times
@@ -24,7 +23,6 @@ import org.mockito.kotlin.verify
 import org.robolectric.RobolectricTestRunner
 import org.robolectric.annotation.Config
 import java.io.File
-import kotlin.test.assertEquals
 import kotlin.test.assertTrue
 
 private const val FS_ROOT = "build/test-files"
@@ -32,7 +30,10 @@ private const val FS_ROOT = "build/test-files"
 private val INVOICE_EXPIRED =
     "lnbcrt120n1pjlrxz9pp599l2jlsrt4qeczdyh90rzhfsfrkxhu6dged8yhfyhw0kt3sfzsyqdqdw4hxjaz5v4ehgcqzzsxqyz5vqsp54ehunpcenrejgq4tfwr8a4s5tlyrchhk27e70a0vagwr60n8mwhq9qyyssq5t6dqjwu4r6rnjfz7uk9mx0p2h2rxlr00fqyzjtudglay6lzfqp370ml6y8hnwfz8eamhdt4nu7s6jwy64gd9gtl9t8zz5l67cq6j6qqkgmr5v"
 
-@Config(shadows = [ShadowArguments::class], manifest = Config.NONE)
+@Config(
+    manifest = Config.NONE,
+    shadows = [ShadowArguments::class],
+)
 @RunWith(RobolectricTestRunner::class)
 class LdkModuleTest {
     private val eventEmitter = mock<RCTDeviceEventEmitter>()
@@ -56,12 +57,8 @@ class LdkModuleTest {
 
     @Before
     fun setUp() {
-        ldkModule = LdkModule(reactContext)
         _promise = mock<Promise>()
-        // TODO remove after PR gets merged and LDK is updated:
-        //  https://github.com/lightningdevkit/ldk-garbagecollected/issues/149
-        get_ldk_version() // ← HACK to force load LDK bindings
-        // TODO clear tests file storage (maybe?)
+        ldkModule = LdkModule(reactContext)
     }
 
     // MARK: Startup methods
@@ -188,7 +185,6 @@ class LdkModuleTest {
             4.0,
             5.0,
             5.0,
-            6.0,
             promise
         )
 
@@ -357,18 +353,14 @@ class LdkModuleTest {
     @Test
     fun test_pay_expiredInvoice() {
         // TODO: Add test for happy flow + other error cases
+        val promise = mock<Promise>()
         setupChannelManager()
 
-        ldkModule.pay(INVOICE_EXPIRED, 0.0, 2.5, _promise)
+        ldkModule.pay(INVOICE_EXPIRED, 0.0, 2.5, promise)
 
-        verify(_promise).reject(
-            eq(LdkErrors.invoice_payment_fail_sending.name),
-            check<Throwable> {
-                assertEquals(
-                    "PaymentError.Sending: LDKRetryableSendFailure_PaymentExpired",
-                    it.message
-                )
-            }
+        verify(promise).reject(
+            eq(LdkErrors.invoice_payment_fail_payment_expired.name),
+            eq(LdkErrors.invoice_payment_fail_payment_expired.name),
         )
     }
 
@@ -446,7 +438,6 @@ class LdkModuleTest {
     @Test
     fun test_nodeId() {
         val promise = mock<Promise>()
-
         setupChannelManager()
 
         ldkModule.nodeId(promise)
@@ -627,7 +618,12 @@ class LdkModuleTest {
         val promise = mock<Promise>()
         setupChannelManager()
 
-        ldkModule.spendRecoveredForceCloseOutputs("transaction", 1.0, "changeDestinationScript", promise)
+        ldkModule.spendRecoveredForceCloseOutputs(
+            "transaction",
+            1.0,
+            "changeDestinationScript",
+            promise
+        )
 
         verify(promise).resolve(check<ReadableArray> {
             assertTrue { it.size() == 0 }