diff --git a/ganttzk/pom.xml b/ganttzk/pom.xml
index 4b93a386a..5c068c08f 100644
--- a/ganttzk/pom.xml
+++ b/ganttzk/pom.xml
@@ -158,11 +158,11 @@
             <scope>test</scope>
         </dependency>
         <dependency>
-            <groupId>jfree</groupId>
+            <groupId>org.jfree</groupId>
             <artifactId>jfreechart</artifactId>
         </dependency>
         <dependency>
-            <groupId>jfree</groupId>
+            <groupId>org.jfree</groupId>
             <artifactId>jcommon</artifactId>
         </dependency>
         <dependency>
diff --git a/libreplan-webapp/pom.xml b/libreplan-webapp/pom.xml
index b27a31d07..edb76d9f7 100644
--- a/libreplan-webapp/pom.xml
+++ b/libreplan-webapp/pom.xml
@@ -364,11 +364,11 @@
             <artifactId>bsh</artifactId>
         </dependency>
         <dependency>
-            <groupId>jfree</groupId>
+            <groupId>org.jfree</groupId>
             <artifactId>jfreechart</artifactId>
         </dependency>
         <dependency>
-            <groupId>jfree</groupId>
+            <groupId>org.jfree</groupId>
             <artifactId>jcommon</artifactId>
         </dependency>
 
diff --git a/pom.xml b/pom.xml
index 32df6894d..f5934e89f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -467,21 +467,21 @@
 
             <!-- Jfreechart  -->
             <dependency>
-                <groupId>jfree</groupId>
+                <groupId>org.jfree</groupId>
                 <artifactId>jfreechart</artifactId>
-                <version>1.0.13</version>
+                <version>1.0.19</version>
             </dependency>
             <dependency>
-                <groupId>jfree</groupId>
+                <groupId>org.jfree</groupId>
                 <artifactId>jcommon</artifactId>
-                <version>1.0.16</version>
+                <version>1.0.23</version>
             </dependency>
 
             <!-- Joda Time -->
             <dependency>
                 <groupId>joda-time</groupId>
                 <artifactId>joda-time</artifactId>
-                <version>2.3</version>
+                <version>2.9.3</version>
             </dependency>
 
             <!-- LibrePlan ZK Components -->