diff --git a/build.sbt b/build.sbt
index 7c8aa56..8cd1b80 100644
--- a/build.sbt
+++ b/build.sbt
@@ -5,7 +5,7 @@
 val Name = "gitbucket"
 val GitBucketVersion = "4.33.0"
 val ScalatraVersion = "2.7.0-RC1"
-val JettyVersion = "9.4.27.v20200227"
+val JettyVersion = "9.4.28.v20200408"
 val JgitVersion = "5.7.0.202003110725-r"
 
 lazy val root = (project in file("."))
@@ -45,11 +45,11 @@
   "commons-net"                     % "commons-net"                  % "3.6",
   "org.apache.httpcomponents"       % "httpclient"                   % "4.5.12",
   "org.apache.sshd"                 % "apache-sshd"                  % "2.1.0" exclude ("org.slf4j", "slf4j-jdk14") exclude ("org.apache.sshd", "sshd-mina") exclude ("org.apache.sshd", "sshd-netty"),
-  "org.apache.tika"                 % "tika-core"                    % "1.23",
+  "org.apache.tika"                 % "tika-core"                    % "1.24",
   "com.github.takezoe"              %% "blocking-slick-32"           % "0.0.12",
   "com.novell.ldap"                 % "jldap"                        % "2009-10-07",
   "com.h2database"                  % "h2"                           % "1.4.199",
-  "org.mariadb.jdbc"                % "mariadb-java-client"          % "2.5.4",
+  "org.mariadb.jdbc"                % "mariadb-java-client"          % "2.6.0",
   "org.postgresql"                  % "postgresql"                   % "42.2.6",
   "ch.qos.logback"                  % "logback-classic"              % "1.2.3",
   "com.zaxxer"                      % "HikariCP"                     % "3.4.2",
@@ -71,7 +71,7 @@
   "org.testcontainers"              % "mysql"                        % "1.13.0" % "test",
   "org.testcontainers"              % "postgresql"                   % "1.13.0" % "test",
   "net.i2p.crypto"                  % "eddsa"                        % "0.3.0",
-  "is.tagomor.woothee"              % "woothee-java"                 % "1.10.1",
+  "is.tagomor.woothee"              % "woothee-java"                 % "1.11.0",
   "org.ec4j.core"                   % "ec4j-core"                    % "0.0.3"
 )