diff --git a/pom.xml b/pom.xml
index efab3007a..afb382e9a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -83,6 +83,7 @@
     <maven.plugin.tools.version>3.3</maven.plugin.tools.version>
     <maven.bundle.plugin.version>2.5.3</maven.bundle.plugin.version>
     <hc.client.version>4.5.8</hc.client.version>
+    <hc.core.version>4.4.11</hc.core.version>
     <jackson.version>2.9.8</jackson.version>
     <aalto-xml.version>0.9.10</aalto-xml.version>