diff --git a/build.gradle b/build.gradle
index d027592..6c9b719 100644
--- a/build.gradle
+++ b/build.gradle
@@ -40,6 +40,7 @@
     implementation 'org.postgresql:postgresql:42.2.5'
     implementation 'com.jcabi:jcabi-manifests:1.1'
     implementation 'org.bitbucket.b_c:jose4j:0.6.3'
+    implementation 'org.thymeleaf.extras:thymeleaf-extras-springsecurity5'
     implementation 'org.springframework.social:spring-social-web:1.1.6.RELEASE'
     implementation group: 'com.google.code.gson', name: 'gson', version: '2.8.5'
     implementation group: 'com.sun.jersey', name: 'jersey-client', version: '1.19'