diff --git a/libreplan-business/src/main/resources/libreplan-business-spring-config.xml b/libreplan-business/src/main/resources/libreplan-business-spring-config.xml
index 351deffdb..2ed5f1c38 100644
--- a/libreplan-business/src/main/resources/libreplan-business-spring-config.xml
+++ b/libreplan-business/src/main/resources/libreplan-business-spring-config.xml
@@ -7,10 +7,10 @@
        xmlns:tx="http://www.springframework.org/schema/tx"
        xmlns:context="http://www.springframework.org/schema/context"
        xsi:schemaLocation="http://www.springframework.org/schema/beans
-    http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
-    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
-    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
-    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
+    http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
+    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd
+    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
+    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">
 
     <aop:aspectj-autoproxy/>
 
diff --git a/libreplan-webapp/src/main/resources/libreplan-webapp-spring-config.xml b/libreplan-webapp/src/main/resources/libreplan-webapp-spring-config.xml
index f04120966..c49edc8ec 100644
--- a/libreplan-webapp/src/main/resources/libreplan-webapp-spring-config.xml
+++ b/libreplan-webapp/src/main/resources/libreplan-webapp-spring-config.xml
@@ -5,8 +5,8 @@
        xmlns:context="http://www.springframework.org/schema/context"
        xmlns:jaxrs="http://cxf.apache.org/jaxrs"
        xsi:schemaLocation="http://www.springframework.org/schema/beans
-       http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
-       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
+       http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
+       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
        http://cxf.apache.org/jaxrs http://cxf.apache.org/schemas/jaxrs.xsd">
 
     <!-- For enabling annotation-based configuration (in particular, required for "@Autowired") -->
diff --git a/libreplan-webapp/src/main/resources/libreplan-webapp-spring-security-config.xml b/libreplan-webapp/src/main/resources/libreplan-webapp-spring-security-config.xml
index f74420fd5..ba65a1c2a 100644
--- a/libreplan-webapp/src/main/resources/libreplan-webapp-spring-security-config.xml
+++ b/libreplan-webapp/src/main/resources/libreplan-webapp-spring-security-config.xml
@@ -4,9 +4,9 @@
     xmlns:beans="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns:p="http://www.springframework.org/schema/p"
     xsi:schemaLocation="http://www.springframework.org/schema/beans
-    http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
+    http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
                         http://www.springframework.org/schema/security
-                        http://www.springframework.org/schema/security/spring-security-4.1.xsd">
+                        http://www.springframework.org/schema/security/spring-security-4.2.xsd">
 
     <!--
     NOTE: see
diff --git a/pom.xml b/pom.xml
index 5665a842d..1d2a852d1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -151,7 +151,7 @@
 
                 <jdbcDriver.groupId>mysql</jdbcDriver.groupId>
                 <jdbcDriver.artifactId>mysql-connector-java</jdbcDriver.artifactId>
-                <jdbcDriver.version>5.1.39</jdbcDriver.version>
+                <jdbcDriver.version>5.1.42</jdbcDriver.version>
                 <jdbcDriver.className>com.mysql.jdbc.Driver</jdbcDriver.className>
                 <!-- Data source properties -->
                 <dataSource.url>jdbc:mysql://localhost/libreplan${libreplan.mode}</dataSource.url>
@@ -289,14 +289,14 @@
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-orm</artifactId>
-                <version>4.2.6.RELEASE</version>
+                <version>4.3.9.RELEASE</version>
             </dependency>
 
             <!-- Spring Web -->
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-web</artifactId>
-                <version>4.2.6.RELEASE</version>
+                <version>4.3.9.RELEASE</version>
             </dependency>
 
             <!--
@@ -315,38 +315,38 @@
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-context-support</artifactId>
-                <version>4.2.6.RELEASE</version>
+                <version>4.3.9.RELEASE</version>
             </dependency>
 
             <!--  Spring security -->
             <dependency>
                 <groupId>org.springframework.security</groupId>
                 <artifactId>spring-security-web</artifactId>
-                <version>4.1.0.RELEASE</version>
+                <version>4.2.3.RELEASE</version>
             </dependency>
             <dependency>
                 <groupId>org.springframework.security</groupId>
                 <artifactId>spring-security-config</artifactId>
-                <version>4.1.0.RELEASE</version>
+                <version>4.2.3.RELEASE</version>
             </dependency>
             <dependency>
                 <groupId>org.springframework.security</groupId>
                 <artifactId>spring-security-acl</artifactId>
-                <version>4.1.0.RELEASE</version>
+                <version>4.2.3.RELEASE</version>
             </dependency>
 
             <!-- Spring Dependency LDAP -->
             <dependency>
                 <groupId>org.springframework.security</groupId>
                 <artifactId>spring-security-ldap</artifactId>
-                <version>4.1.0.RELEASE</version>
+                <version>4.2.3.RELEASE</version>
             </dependency>
 
             <!-- Spring test -->
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-test</artifactId>
-                <version>4.2.6.RELEASE</version>
+                <version>4.3.9.RELEASE</version>
                 <scope>test</scope>
             </dependency>