diff --git a/OpenKeychain/build.gradle b/OpenKeychain/build.gradle
index dbbb4df91..6a2cb0e0c 100644
--- a/OpenKeychain/build.gradle
+++ b/OpenKeychain/build.gradle
@@ -9,8 +9,8 @@ dependencies {
     // from local Android SDK
     implementation 'androidx.legacy:legacy-support-v4:1.0.0'
     implementation 'androidx.appcompat:appcompat:1.1.0'
-    implementation 'com.google.android.material:material:1.0.0'
-    implementation 'androidx.recyclerview:recyclerview:1.0.0'
+    implementation 'com.google.android.material:material:1.1.0'
+    implementation 'androidx.recyclerview:recyclerview:1.1.0'
     implementation 'androidx.cardview:cardview:1.0.0'
     implementation 'androidx.annotation:annotation:1.1.0'
 
@@ -59,7 +59,7 @@ dependencies {
     implementation project(':extern:MaterialChipsInput')
 
     // implementation project(':openkeychain:extern:bouncycastle:core')
-    implementation 'org.bouncycastle:bcprov-jdk15on:1.65'
+    implementation 'org.bouncycastle:bcprov-jdk15on:1.65.01'
     implementation project(':extern:bouncycastle:pg')
     // implementation project(':openkeychain:extern:bouncycastle:prov')
 
@@ -80,7 +80,7 @@ dependencies {
     // https://github.com/googlesamples/android-testing/blob/master/ui/espresso/BasicSample/app/build.gradle#L28
     androidTestImplementation 'androidx.annotation:annotation:1.1.0'
     androidTestImplementation 'androidx.appcompat:appcompat:1.1.0'
-    androidTestImplementation 'com.google.android.material:material:1.0.0'
+    androidTestImplementation 'com.google.android.material:material:1.1.0'
     androidTestImplementation 'androidx.test.ext:junit:1.1.1'
     androidTestImplementation 'androidx.test:rules:1.2.0'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
@@ -91,18 +91,18 @@ dependencies {
         exclude module: 'recyclerview-v7'
     }
 
-    implementation "com.jakewharton.timber:timber:4.7.0"
+    implementation 'com.jakewharton.timber:timber:4.7.1'
 
     implementation 'org.glassfish:javax.annotation:10.0-b28'
-    api "com.google.auto.value:auto-value-annotations:1.6.2"
+    api "com.google.auto.value:auto-value-annotations:1.6.5"
     annotationProcessor "com.google.auto.value:auto-value:1.6.2"
     implementation 'com.ryanharter.auto.value:auto-value-parcel-adapter:0.2.6'
     annotationProcessor "com.ryanharter.auto.value:auto-value-parcel:0.2.6"
 
-    implementation 'androidx.lifecycle:lifecycle-extensions:2.1.0'
-    annotationProcessor 'androidx.lifecycle:lifecycle-compiler:2.1.0'
+    implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
+    annotationProcessor 'androidx.lifecycle:lifecycle-compiler:2.2.0'
 
-    implementation 'androidx.sqlite:sqlite-framework:2.0.1'
+    implementation 'androidx.sqlite:sqlite-framework:2.1.0'
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
 
     // for debugging the db. don't enable by default, this will expose the database no the network!
@@ -221,7 +221,7 @@ android {
     }
 
     variantFilter { variant ->
-        if(variant.buildType.name.equals('debug') && variant.getFlavors().get(0).name.equals('google')) {
+        if(variant.buildType.name == 'debug' && variant.getFlavors().get(0).name == 'google') {
             variant.setIgnore(true)
         }
     }