diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 838b55bdb..83ecd1e3e 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -3,7 +3,7 @@ org-springframework = "6.2.8"
 org-springframework-security = "6.5.1"
 com-fasterxml-jackson = "2.18.4.1"
 nimbus-jose-jwt = "10.3.1"
-org-bouncycastle = "1.79"
+org-bouncycastle = "1.81"
 com-squareup-okhttp3 = "4.12.0"
 io-spring-javaformat = "0.0.47"
 io-spring-nohttp = "0.0.11"