diff --git a/OpenKeychain/build.gradle b/OpenKeychain/build.gradle
index 436a0563c..97eeb8322 100644
--- a/OpenKeychain/build.gradle
+++ b/OpenKeychain/build.gradle
@@ -176,8 +176,8 @@ android {
     defaultConfig {
         minSdkVersion 15
         targetSdkVersion 28
-        versionCode 53001
-        versionName "5.3-beta2"
+        versionCode 53002
+        versionName "5.3-beta3"
         applicationId "org.sufficientlysecure.keychain"
         // the androidjunitrunner is broken regarding coverage, see here:
         // https://code.google.com/p/android/issues/detail?id=170607
diff --git a/extern/bouncycastle b/extern/bouncycastle
index c260cecf0..3872e5ebe 160000
--- a/extern/bouncycastle
+++ b/extern/bouncycastle
@@ -1 +1 @@
-Subproject commit c260cecf0b80c986e7461f63d3c12aed72d4be4d
+Subproject commit 3872e5ebe104985f85ebe3ab59bdd72939477913