diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 1e33801..38e74c3 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,6 +1,6 @@
 [versions]
 kotlin = "2.2.10"
-bouncycastle = "1.80"
+bouncycastle = "1.86"
 junit = "4.13.2"
 
 [libraries]