diff --git a/build.sbt b/build.sbt
index 5ac4f61..b5c9d04 100644
--- a/build.sbt
+++ b/build.sbt
@@ -47,7 +47,7 @@
   "com.novell.ldap"                 % "jldap"                        % "2009-10-07",
   "com.h2database"                  % "h2"                           % "1.4.199",
   "org.mariadb.jdbc"                % "mariadb-java-client"          % "2.7.5",
-  "org.postgresql"                  % "postgresql"                   % "42.3.3",
+  "org.postgresql"                  % "postgresql"                   % "42.3.4",
   "ch.qos.logback"                  % "logback-classic"              % "1.2.11",
   "com.zaxxer"                      % "HikariCP"                     % "4.0.3" exclude ("org.slf4j", "slf4j-api"),
   "com.typesafe"                    % "config"                       % "1.4.2",