diff --git a/app/build.gradle b/app/build.gradle
index ed75aac..a9b7741 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -44,6 +44,7 @@ android {
         versionCode 32
         versionName "0.8.10"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        testInstrumentationRunnerArguments clearPackageData: 'true'
         buildConfigField "boolean", "ENABLE_CUSTOM_CSS", "false"
     }
     signingConfigs {
diff --git a/app/src/androidTest/java/com/wbrawner/simplemarkdown/MarkdownTests.kt b/app/src/androidTest/java/com/wbrawner/simplemarkdown/MarkdownTests.kt
index 31a10e7..efd5083 100644
--- a/app/src/androidTest/java/com/wbrawner/simplemarkdown/MarkdownTests.kt
+++ b/app/src/androidTest/java/com/wbrawner/simplemarkdown/MarkdownTests.kt
@@ -1,5 +1,6 @@
 package com.wbrawner.simplemarkdown
 
+import android.Manifest.permission.WRITE_EXTERNAL_STORAGE
 import android.app.Activity.RESULT_OK
 import android.app.Instrumentation
 import android.content.Context
@@ -22,6 +23,7 @@ import androidx.test.espresso.web.webdriver.DriverAtoms.findElement
 import androidx.test.espresso.web.webdriver.DriverAtoms.getText
 import androidx.test.espresso.web.webdriver.Locator
 import androidx.test.platform.app.InstrumentationRegistry.getInstrumentation
+import androidx.test.rule.GrantPermissionRule
 import com.wbrawner.simplemarkdown.view.activity.MainActivity
 import org.hamcrest.Matchers.containsString
 import org.junit.Assert.assertEquals
@@ -36,6 +38,9 @@ class MarkdownTests {
     @get:Rule
     var activityRule = IntentsTestRule(MainActivity::class.java, false, false)
 
+    @get:Rule
+    val grantPermissionRule: GrantPermissionRule = GrantPermissionRule.grant(WRITE_EXTERNAL_STORAGE)
+
     lateinit var file: File
 
     @Before
@@ -66,7 +71,7 @@ class MarkdownTests {
     }
 
     @Test
-    fun  newMarkdownTest() {
+    fun newMarkdownTest() {
         onView(withId(R.id.markdown_edit))
                 .perform(typeText("# UI Testing\n\nThe quick brown fox jumped over the lazy dog."))
         openActionBarOverflowOrOptionsMenu(getApplicationContext())