diff --git a/app/build.gradle b/app/build.gradle
index 05f9890..77acb98 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -38,7 +38,7 @@ dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
     implementation 'androidx.appcompat:appcompat:1.1.0'
     implementation 'androidx.core:core-ktx:1.1.0'
-    implementation 'com.google.android.material:material:1.0.0'
+    implementation 'com.google.android.material:material:1.1.0-alpha10'
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
     implementation 'androidx.navigation:navigation-fragment:2.1.0'
     implementation 'androidx.navigation:navigation-ui:2.1.0'
diff --git a/app/src/main/java/net/underdesk/circolapp/adapters/CircularLetterAdapter.kt b/app/src/main/java/net/underdesk/circolapp/adapters/CircularLetterAdapter.kt
index fd50ad9..cabd3bf 100644
--- a/app/src/main/java/net/underdesk/circolapp/adapters/CircularLetterAdapter.kt
+++ b/app/src/main/java/net/underdesk/circolapp/adapters/CircularLetterAdapter.kt
@@ -125,9 +125,9 @@ class CircularLetterAdapter(
                 != PackageManager.PERMISSION_GRANTED
             ) {
 
-                val builder: AlertDialog.Builder? = AlertDialog.Builder(context)
+                val builder = AlertDialog.Builder(context)
 
-                builder?.apply {
+                builder.apply {
                     setMessage(context.getString(R.string.dialog_message_permission_write))
                     setTitle(context.getString(R.string.dialog_title_permission_required))
                     setPositiveButton(
@@ -142,7 +142,7 @@ class CircularLetterAdapter(
 
                 }
 
-                builder?.create()?.show()
+                builder.create().show()
             } else {
                 adapterCallback.downloadCircular()
             }
diff --git a/app/src/main/res/layout/dialog_reminder.xml b/app/src/main/res/layout/dialog_reminder.xml
index 8bf6262..623a39d 100644
--- a/app/src/main/res/layout/dialog_reminder.xml
+++ b/app/src/main/res/layout/dialog_reminder.xml
@@ -24,9 +24,9 @@
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/dialog_date_picker" />
 
-    <Button
+    <com.google.android.material.button.MaterialButton
         android:id="@+id/dialog_cancel_button"
-        style="@style/Widget.AppCompat.Button.Borderless"
+        style="@style/Widget.MaterialComponents.Button.TextButton"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginStart="8dp"
@@ -37,9 +37,9 @@
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/dialog_time_picker" />
 
-    <Button
+    <com.google.android.material.button.MaterialButton
         android:id="@+id/dialog_ok_button"
-        style="@style/Widget.AppCompat.Button.Borderless.Colored"
+        style="@style/Widget.MaterialComponents.Button.TextButton"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginTop="4dp"
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 5a6f1fb..d480a06 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -1,7 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="colorPrimary">#008577</color>
-    <color name="colorPrimaryDark">#00574B</color>
-    <color name="colorAccent">#D81B60</color>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#03A9F4</color>
+    <color name="colorAccentDark">#007AC1</color>
     <color name="colorDivider">#BDBDBD</color>
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index acace3a..16b9772 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1,5 +1,5 @@
 <resources>
-    <string name="app_name">Circolapp</string>
+    <string name="app_name">CircolApp</string>
     <string name="title_circular_letters">Circular letters</string>
     <string name="title_favourites">Favourites</string>
     <string name="title_reminders">Reminders</string>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index 5885930..0280724 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -1,11 +1,14 @@
 <resources>
 
     <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+    <style name="AppTheme" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
         <!-- Customize your theme here. -->
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorPrimaryVariant">@color/colorPrimaryDark</item>
         <item name="colorAccent">@color/colorAccent</item>
+        <item name="colorSecondary">@color/colorAccent</item>
+        <item name="colorSecondaryVariant">@color/colorAccentDark</item>
     </style>
 
 </resources>