diff --git a/keycloak/Dockerfile b/keycloak/Dockerfile
index 81a021b..f01d320 100644
--- a/keycloak/Dockerfile
+++ b/keycloak/Dockerfile
@@ -5,11 +5,11 @@ ENV CURL_CA_BUNDLE=/etc/ssl/certs/cacert.pem
 ARG VERSION
 ENV KEYCLOAK_VERSION $VERSION
 # https://jdbc.postgresql.org/download.html
-ENV JDBC_POSTGRES_VERSION 42.2.16
+ENV JDBC_POSTGRES_VERSION 42.2.18
 # https://dev.mysql.com/downloads/connector/j/
-ENV JDBC_MYSQL_VERSION 8.0.21
+ENV JDBC_MYSQL_VERSION 8.0.22
 # https://github.com/mariadb-corporation/mariadb-connector-j/releases
-ENV JDBC_MARIADB_VERSION 2.6.2
+ENV JDBC_MARIADB_VERSION 2.7.0
 # https://docs.microsoft.com/en-us/sql/connect/jdbc/microsoft-jdbc-driver-for-sql-server-support-matrix?view=sql-server-ver15
 ENV JDBC_MSSQL_VERSION 8.4.1.jre11
 
diff --git a/keycloak/tools/build-keycloak.sh b/keycloak/tools/build-keycloak.sh
index 2603649..694a2fa 100755
--- a/keycloak/tools/build-keycloak.sh
+++ b/keycloak/tools/build-keycloak.sh
@@ -14,8 +14,8 @@ if [ "$GIT_REPO" != "" ]; then
 
     # Install Maven
     cd /opt/jboss 
-    curl -s https://apache.uib.no/maven/maven-3/3.5.4/binaries/apache-maven-3.5.4-bin.tar.gz | tar xz
-    mv apache-maven-3.5.4 /opt/jboss/maven
+    curl -s https://apache.uib.no/maven/maven-3/3.6.3/binaries/apache-maven-3.6.3-bin.tar.gz | tar xz
+    mv apache-maven-3.6.3 /opt/jboss/maven
     export M2_HOME=/opt/jboss/maven
 
     # Clone repository