diff --git a/build.gradle b/build.gradle
index 929bad9de..fd04feeb2 100644
--- a/build.gradle
+++ b/build.gradle
@@ -29,7 +29,7 @@ repositories {
 
 dependencies {
 	compile project(':libs:MemorizingTrustManager')
-	compile 'org.sufficientlysecure:openpgp-api:9.0'
+	compile 'org.sufficientlysecure:openpgp-api:10.0'
 	compile 'com.soundcloud.android:android-crop:1.0.1@aar'
 	compile 'com.android.support:support-v13:23.0.1'
 	compile 'org.bouncycastle:bcprov-jdk15on:1.52'
diff --git a/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java b/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java
index a677e5b24..f54ace3d9 100644
--- a/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java
@@ -1270,9 +1270,12 @@ public class ConversationActivity extends XmppActivity
 			if (requestCode == REQUEST_DECRYPT_PGP) {
 				mConversationFragment.onActivityResult(requestCode, resultCode, data);
 			} else if (requestCode == REQUEST_CHOOSE_PGP_ID) {
+				// the user chose OpenPGP for encryption and selected his key in the PGP provider
 				if (xmppConnectionServiceBound) {
 					if (data.getExtras().containsKey(OpenPgpApi.EXTRA_SIGN_KEY_ID)) {
+						// associate selected PGP keyId with the account
 						mSelectedConversation.getAccount().setPgpSignId(data.getExtras().getLong(OpenPgpApi.EXTRA_SIGN_KEY_ID));
+						// we need to announce the key as described in XEP-027
 						announcePgp(mSelectedConversation.getAccount(), null);
 					} else {
 						choosePgpSignId(mSelectedConversation.getAccount());
@@ -1283,7 +1286,7 @@ public class ConversationActivity extends XmppActivity
 				}
 			} else if (requestCode == REQUEST_ANNOUNCE_PGP) {
 				if (xmppConnectionServiceBound) {
-					announcePgp(mSelectedConversation.getAccount(), null);
+					announcePgp(mSelectedConversation.getAccount(), mSelectedConversation);
 					this.mPostponedActivityResult = null;
 				} else {
 					this.mPostponedActivityResult = new Pair<>(requestCode, data);