diff --git a/api/build.gradle b/api/build.gradle
index c0b740a..2b6ba13 100644
--- a/api/build.gradle
+++ b/api/build.gradle
@@ -28,7 +28,7 @@ dependencies {
 	// nimbus para el access token HS256) + BouncyCastle (Argon2id de contraseñas).
 	implementation 'org.springframework.boot:spring-boot-starter-security'
 	implementation 'org.springframework.boot:spring-boot-starter-oauth2-resource-server'
-	implementation 'org.bouncycastle:bcprov-jdk18on:1.78.1'
+	implementation 'org.bouncycastle:bcprov-jdk18on:1.85.2'
 	// Informe municipal IUF en PDF (docs/05). OpenPDF (LGPL/MPL): apto para repo público, sin la
 	// AGPL de iText 7. API clásica com.lowagie.text, estable y documentada.
 	implementation 'com.github.librepdf:openpdf:1.3.35'