diff --git a/lib/build.gradle b/lib/build.gradle
index 2d2ebe6..43ca7d4 100644
--- a/lib/build.gradle
+++ b/lib/build.gradle
@@ -14,7 +14,7 @@ dependencies {
 
     implementation "com.github.komputing:khex:1.1.0"
 
-    implementation "org.bouncycastle:bcprov-jdk15to18:1.71"
+    implementation "org.bouncycastle:bcprov-jdk15on:1.70"
 
     implementation "com.squareup.moshi:moshi:$versions.moshi"
     ksp "com.squareup.moshi:moshi-kotlin-codegen:$versions.moshi"