diff --git a/library/build.gradle b/library/build.gradle
index 36fb6022..d87b9506 100644
--- a/library/build.gradle
+++ b/library/build.gradle
@@ -94,7 +94,7 @@ tasks.withType(Test) {
 dependencies {
     api "org.bouncycastle:bcprov-jdk15to18:1.73"
     api "org.bouncycastle:bcpkix-jdk15to18:1.73"
-    api "org.bouncycastle:bcutil-jdk15to18:1.73"
+    api "org.bouncycastle:bcutil-jdk15to18:1.77"
     // for jpeg2000 decode/encode
     compileOnly 'com.gemalto.jp2:jp2-android:1.0.3'