diff --git a/build.gradle b/build.gradle
index aa909c3..6bfecc0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -63,7 +63,7 @@ dependencies {
     runtimeOnly "org.yaml:snakeyaml"
     runtimeOnly("ch.qos.logback:logback-classic")
 
-    implementation 'org.bouncycastle:bcprov-jdk15to18:1.76'
+    implementation 'org.bouncycastle:bcprov-jdk15to18:1.77'
 
     implementation "com.msgilligan:cj-btc-jsonrpc:${consensusjVersion}"
     implementation "com.msgilligan:cj-btc-rx-jsonrpc:${consensusjVersion}"