diff --git a/build.gradle b/build.gradle
index 39acc04..25654b8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -16,6 +16,7 @@ allprojects {
     repositories {
         google()
         jcenter()
+        maven { url 'https://jitpack.io' }
     }
 
     // custom dokka format
@@ -28,5 +29,5 @@ allprojects {
 
 ext {
     compileSdkVersion = 29
-    hwSdkVersionName = '4.1.4'
+    hwSdkVersionName = '4.2.1'
 }
diff --git a/hwsecurity/openpgp/build.gradle b/hwsecurity/openpgp/build.gradle
index de03d58..51851e0 100644
--- a/hwsecurity/openpgp/build.gradle
+++ b/hwsecurity/openpgp/build.gradle
@@ -9,7 +9,7 @@ dependencies {
     compileOnly project(':hwsecurity:ui')
     compileOnly 'com.google.android.material:material:1.1.0'
 
-    implementation 'org.bouncycastle:bcprov-jdk15on:1.67'
+    implementation 'org.bouncycastle:bcprov-jdk15on:1.65'
 
     compileOnly 'androidx.annotation:annotation:1.1.0'
 
diff --git a/hwsecurity/ssh/build.gradle b/hwsecurity/ssh/build.gradle
index a7b2cd6..1d679f8 100644
--- a/hwsecurity/ssh/build.gradle
+++ b/hwsecurity/ssh/build.gradle
@@ -5,7 +5,7 @@ apply plugin: 'org.jetbrains.dokka'
 dependencies {
     api project(':hwsecurity:core')
 
-    implementation 'org.bouncycastle:bcprov-jdk15on:1.67'
+    implementation 'org.bouncycastle:bcprov-jdk15on:1.65'
 
     compileOnly 'androidx.annotation:annotation:1.1.0'