diff --git a/pom.xml b/pom.xml
index 1cfaa766209fbc33c77d24b3ed12fd9cd81e394b..125dbd8c2483a6c1c01b1a6c4c6ac37a469272fd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -65,10 +65,10 @@
 		<org.springframework.version>4.3.14.RELEASE</org.springframework.version>
 		<org.hibernate.version>5.2.13.Final</org.hibernate.version>
 		<com.sun.jersey.version>1.19.4</com.sun.jersey.version>
-		<jackson.version>1.9.2</jackson.version>
+		<jackson.version>1.9.13</jackson.version>
 		<org.mysql.version>5.1.45</org.mysql.version>
 		<org.postgresql.version>42.2.1</org.postgresql.version>
-		<org.infinispan.version>8.2.5.Final</org.infinispan.version>
+		<org.infinispan.version>8.2.8.Final</org.infinispan.version>
 		<lucene.version>4.8.0</lucene.version>
 		<version.selenium>3.8.1</version.selenium>
 		<version.drone>2.5.0</version.drone>
@@ -2169,12 +2169,12 @@
 		<dependency>
 			<groupId>org.apache.httpcomponents</groupId>
 			<artifactId>httpcore</artifactId>
-			<version>4.3.3</version>
+			<version>4.4.9</version>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.httpcomponents</groupId>
 			<artifactId>httpclient</artifactId>
-			<version>4.3.3</version>
+			<version>4.5.5</version>
 			<exclusions>
 				<exclusion>
 					<groupId>commons-logging</groupId>
@@ -2185,7 +2185,7 @@
 		<dependency>
 			<groupId>org.apache.httpcomponents</groupId>
 			<artifactId>httpmime</artifactId>
-			<version>4.3.3</version>
+			<version>4.5.5</version>
 		</dependency>
 		<dependency>
 			<!-- Used by at least ical4j, velocity, basiclti -->
diff --git a/src/main/java/org/olat/core/commons/services/help/ConfluenceHelper.java b/src/main/java/org/olat/core/commons/services/help/ConfluenceHelper.java
index a51abea762a32c2b24dd7b7d21122a55bb53208e..fe374dfc32a8676af437d25d153051aa7d4f7a5c 100644
--- a/src/main/java/org/olat/core/commons/services/help/ConfluenceHelper.java
+++ b/src/main/java/org/olat/core/commons/services/help/ConfluenceHelper.java
@@ -24,7 +24,6 @@ import java.util.Locale;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 
-import org.apache.commons.io.IOUtils;
 import org.apache.http.HttpResponse;
 import org.apache.http.HttpStatus;
 import org.apache.http.client.methods.HttpGet;
@@ -195,9 +194,9 @@ public class ConfluenceHelper {
 			if (lastTrial == null || lastTrial.getTime() < (now.getTime() - (1800 * 1000))) {
 				translatTrials.put(aliasUrl, now);				
 				new Thread() {
+					@Override
 					public void run() {
-						CloseableHttpClient httpClient = HttpClientFactory.getHttpClientInstance(false);
-						try {
+						try(CloseableHttpClient httpClient = HttpClientFactory.getHttpClientInstance(false)) {
 							// Phase 1: lookup alias redirect
 							HttpGet httpMethod = new HttpGet(aliasUrl);
 							httpMethod.setHeader("User-Agent", Settings.getFullVersionInfo());
@@ -219,8 +218,8 @@ public class ConfluenceHelper {
 								}
 								// Remove the path to extract the page name
 								String path = body.substring(locationPos + 18, endPos);
-								String translatedPage = path.substring(path.lastIndexOf("/") + 1);
-								translatedPage = translatedPage.replaceAll("\\+", " ");
+								String translatedPath = path.substring(path.lastIndexOf("/") + 1);
+								translatedPath = translatedPath.replaceAll("\\+", " ");
 								
 								// Phase 2:Lookup real page name in confluence
 								// if this just a stupid confluence page ID
@@ -232,8 +231,8 @@ public class ConfluenceHelper {
 								// Anchors do not work on such pages. For iso
 								// latin pages this should be fine for most
 								// cases.
-								if (translatedPage.indexOf("viewpage.action?pageId") != -1) {
-									String redirectUrl = confluencePagesUrl + translatedPage;
+								if (translatedPath.indexOf("viewpage.action?pageId") != -1) {
+									String redirectUrl = confluencePagesUrl + translatedPath;
 									httpMethod = new HttpGet(redirectUrl);
 									httpMethod.setHeader("User-Agent", Settings.getFullVersionInfo());
 									response = httpClient.execute(httpMethod);
@@ -254,8 +253,8 @@ public class ConfluenceHelper {
 										}
 										// Remove the path to extract the page name
 										path = body.substring(titlePos + 25, endPos);
-										translatedPage = path.substring(path.lastIndexOf("/") + 1);
-										translatedPage = translatedPage.replaceAll("\\+", " ");
+										translatedPath = path.substring(path.lastIndexOf("/") + 1);
+										translatedPath = translatedPath.replaceAll("\\+", " ");
 										// Check if this just a stupid page ID instead
 										// of the page name. This totally breaks the
 										// anchor stuff, we need the real page name. For
@@ -264,12 +263,10 @@ public class ConfluenceHelper {
 								}
 								
 								// We're done. Put to cache for next retrieval
-								translatedPages.putIfAbsent(aliasUrl, translatedPage);
+								translatedPages.putIfAbsent(aliasUrl, translatedPath);
 							}
 						} catch (Exception e) {
 							logger.warn("Error while getting help page from EN alias", e);
-						} finally {
-							IOUtils.closeQuietly(httpClient);
 						}
 					}
 				}.start();