diff --git a/build.gradle.kts b/build.gradle.kts
index 2c41c65f..ccb95580 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -28,7 +28,7 @@ dependencies {
     implementation("com.google.guava:guava:33.5.0-jre")
     implementation("com.google.zxing:core:3.5.4")
     implementation("com.google.zxing:javase:3.5.4")
-    implementation("org.bouncycastle:bcprov-jdk18on:1.83")
+    implementation("org.bouncycastle:bcprov-jdk18on:1.84")
     implementation("org.eclipse.angus:jakarta.mail:2.0.5")
     implementation("org.eclipse.parsson:jakarta.json:1.1.7")
 }