diff --git a/CITATION.cff b/CITATION.cff
index 66956af75..4dfeaa815 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -25,7 +25,7 @@ preferred-citation:
   type: proceedings
 title: "HiGHmed Data Sharing Framework (HiGHmed DSF)"
 version: 0.6.0
-date-released: 2021-10-20
+date-released: 2021-12-10
 url: https://github.com/highmed/highmed-dsf/wiki
 repository-code: https://github.com/highmed/highmed-dsf
 repository-artifact: https://github.com/highmed/highmed-dsf/releases
diff --git a/pom.xml b/pom.xml
index 137de2c68..3c83be24a 100755
--- a/pom.xml
+++ b/pom.xml
@@ -25,7 +25,7 @@
 		<main.basedir>${project.basedir}</main.basedir>
 
 		<slf4j.version>1.8.0-beta4</slf4j.version>
-		<log4j.version>2.14.1</log4j.version>
+		<log4j.version>2.15.0</log4j.version>
 
 		<jetty.version>9.4.44.v20210927</jetty.version>
 		<jersey.version>2.35</jersey.version>