diff --git a/main/buildkit/pom.xml b/main/buildkit/pom.xml
index 4dde902b9..7ebb12112 100644
--- a/main/buildkit/pom.xml
+++ b/main/buildkit/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.cryptomator</groupId>
 		<artifactId>main</artifactId>
-		<version>1.6.0-SNAPSHOT</version>
+		<version>1.5.14</version>
 	</parent>
 	<artifactId>buildkit</artifactId>
 	<packaging>pom</packaging>
diff --git a/main/commons/pom.xml b/main/commons/pom.xml
index 28a42ec07..e343999ce 100644
--- a/main/commons/pom.xml
+++ b/main/commons/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.cryptomator</groupId>
 		<artifactId>main</artifactId>
-		<version>1.6.0-SNAPSHOT</version>
+		<version>1.5.14</version>
 	</parent>
 	<artifactId>commons</artifactId>
 	<name>Cryptomator Commons</name>
diff --git a/main/launcher/pom.xml b/main/launcher/pom.xml
index a2559d145..64e142c23 100644
--- a/main/launcher/pom.xml
+++ b/main/launcher/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.cryptomator</groupId>
 		<artifactId>main</artifactId>
-		<version>1.6.0-SNAPSHOT</version>
+		<version>1.5.14</version>
 	</parent>
 	<artifactId>launcher</artifactId>
 	<name>Cryptomator Launcher</name>
diff --git a/main/pom.xml b/main/pom.xml
index 1446245f6..a740a1427 100644
--- a/main/pom.xml
+++ b/main/pom.xml
@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.cryptomator</groupId>
 	<artifactId>main</artifactId>
-	<version>1.6.0-SNAPSHOT</version>
+	<version>1.5.14</version>
 	<packaging>pom</packaging>
 	<name>Cryptomator</name>
 
@@ -32,7 +32,7 @@
 		<cryptomator.integrations.linux.version>1.0.0-beta1</cryptomator.integrations.linux.version>
 		<cryptomator.fuse.version>1.3.0</cryptomator.fuse.version>
 		<cryptomator.dokany.version>1.2.4</cryptomator.dokany.version>
-		<cryptomator.webdav.version>1.1.4</cryptomator.webdav.version>
+		<cryptomator.webdav.version>1.2.0</cryptomator.webdav.version>
 
 		<!-- 3rd party dependencies -->
 		<javafx.version>15</javafx.version>
diff --git a/main/ui/pom.xml b/main/ui/pom.xml
index 9e63fb4b0..1332596e8 100644
--- a/main/ui/pom.xml
+++ b/main/ui/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.cryptomator</groupId>
 		<artifactId>main</artifactId>
-		<version>1.6.0-SNAPSHOT</version>
+		<version>1.5.14</version>
 	</parent>
 	<artifactId>ui</artifactId>
 	<name>Cryptomator GUI</name>
diff --git a/main/ui/src/main/java/org/cryptomator/ui/fxapp/UpdateCheckerModule.java b/main/ui/src/main/java/org/cryptomator/ui/fxapp/UpdateCheckerModule.java
index 596e704e9..ef8621f3b 100644
--- a/main/ui/src/main/java/org/cryptomator/ui/fxapp/UpdateCheckerModule.java
+++ b/main/ui/src/main/java/org/cryptomator/ui/fxapp/UpdateCheckerModule.java
@@ -15,6 +15,7 @@ import javafx.beans.property.StringProperty;
 import javafx.concurrent.ScheduledService;
 import javafx.concurrent.Task;
 import javafx.util.Duration;
+import java.io.UncheckedIOException;
 import java.net.URI;
 import java.net.http.HttpClient;
 import java.net.http.HttpRequest;
@@ -39,8 +40,13 @@ public abstract class UpdateCheckerModule {
 
 	@Provides
 	@FxApplicationScoped
-	static HttpClient provideHttpClient() {
-		return HttpClient.newHttpClient();
+	static Optional<HttpClient> provideHttpClient() {
+		try {
+			return Optional.of(HttpClient.newHttpClient());
+		} catch (UncheckedIOException e) {
+			LOG.error("HttpClient for update check cannot be created.", e);
+			return Optional.empty();
+		}
 	}
 
 	@Provides
@@ -66,11 +72,20 @@ public abstract class UpdateCheckerModule {
 
 	@Provides
 	@FxApplicationScoped
-	static ScheduledService<String> provideCheckForUpdatesService(ExecutorService executor, HttpClient httpClient, HttpRequest checkForUpdatesRequest, @Named("checkForUpdatesInterval") ObjectBinding<Duration> period) {
+	static ScheduledService<String> provideCheckForUpdatesService(ExecutorService executor, Optional<HttpClient> httpClient, HttpRequest checkForUpdatesRequest, @Named("checkForUpdatesInterval") ObjectBinding<Duration> period) {
 		ScheduledService<String> service = new ScheduledService<>() {
 			@Override
 			protected Task<String> createTask() {
-				return new UpdateCheckerTask(httpClient, checkForUpdatesRequest);
+				if (httpClient.isPresent()) {
+					return new UpdateCheckerTask(httpClient.get(), checkForUpdatesRequest);
+				} else {
+					return new Task<>() {
+						@Override
+						protected String call() {
+							throw new NullPointerException("No HttpClient present.");
+						}
+					};
+				}
 			}
 		};
 		service.setOnFailed(event -> LOG.error("Failed to execute update service", service.getException()));
diff --git a/main/ui/src/main/resources/license/THIRD-PARTY.txt b/main/ui/src/main/resources/license/THIRD-PARTY.txt
index 109ccb399..0f8241697 100644
--- a/main/ui/src/main/resources/license/THIRD-PARTY.txt
+++ b/main/ui/src/main/resources/license/THIRD-PARTY.txt
@@ -11,7 +11,7 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see http://www.gnu.org/licenses/.
 
-Cryptomator uses 46 third-party dependencies under the following licenses:
+Cryptomator uses 45 third-party dependencies under the following licenses:
         Apache License v2.0:
 			- jffi (com.github.jnr:jffi:1.2.23 - http://github.com/jnr/jffi)
 			- jnr-a64asm (com.github.jnr:jnr-a64asm:1.0.0 - http://nexus.sonatype.org/oss-repository-hosting.html/jnr-a64asm)
@@ -30,39 +30,37 @@ Cryptomator uses 46 third-party dependencies under the following licenses:
 			- Java Native Access (net.java.dev.jna:jna:5.7.0 - https://github.com/java-native-access/jna)
 			- Java Native Access Platform (net.java.dev.jna:jna-platform:5.7.0 - https://github.com/java-native-access/jna)
 			- Apache Commons Lang (org.apache.commons:commons-lang3:3.11 - https://commons.apache.org/proper/commons-lang/)
-			- Apache HttpCore (org.apache.httpcomponents:httpcore:4.4.13 - http://hc.apache.org/httpcomponents-core-ga)
-			- Jackrabbit WebDAV Library (org.apache.jackrabbit:jackrabbit-webdav:2.21.3 - http://jackrabbit.apache.org/jackrabbit-webdav/)
-			- Jetty :: Http Utility (org.eclipse.jetty:jetty-http:9.4.36.v20210114 - https://eclipse.org/jetty/jetty-http)
-			- Jetty :: IO Utility (org.eclipse.jetty:jetty-io:9.4.36.v20210114 - https://eclipse.org/jetty/jetty-io)
-			- Jetty :: Security (org.eclipse.jetty:jetty-security:9.4.36.v20210114 - https://eclipse.org/jetty/jetty-security)
-			- Jetty :: Server Core (org.eclipse.jetty:jetty-server:9.4.36.v20210114 - https://eclipse.org/jetty/jetty-server)
-			- Jetty :: Servlet Handling (org.eclipse.jetty:jetty-servlet:9.4.36.v20210114 - https://eclipse.org/jetty/jetty-servlet)
-			- Jetty :: Utilities (org.eclipse.jetty:jetty-util:9.4.36.v20210114 - https://eclipse.org/jetty/jetty-util)
-			- Jetty :: Utilities :: Ajax(JSON) (org.eclipse.jetty:jetty-util-ajax:9.4.36.v20210114 - https://eclipse.org/jetty/jetty-util-ajax)
-			- Jetty :: Webapp Application Support (org.eclipse.jetty:jetty-webapp:9.4.36.v20210114 - https://eclipse.org/jetty/jetty-webapp)
-			- Jetty :: XML utilities (org.eclipse.jetty:jetty-xml:9.4.36.v20210114 - https://eclipse.org/jetty/jetty-xml)
+			- Apache HttpCore (org.apache.httpcomponents:httpcore:4.4.14 - http://hc.apache.org/httpcomponents-core-ga)
+			- Jackrabbit WebDAV Library (org.apache.jackrabbit:jackrabbit-webdav:2.21.5 - http://jackrabbit.apache.org/jackrabbit-webdav/)
+			- Jetty :: Http Utility (org.eclipse.jetty:jetty-http:10.0.1 - https://eclipse.org/jetty/jetty-http)
+			- Jetty :: IO Utility (org.eclipse.jetty:jetty-io:10.0.1 - https://eclipse.org/jetty/jetty-io)
+			- Jetty :: Security (org.eclipse.jetty:jetty-security:10.0.1 - https://eclipse.org/jetty/jetty-security)
+			- Jetty :: Server Core (org.eclipse.jetty:jetty-server:10.0.1 - https://eclipse.org/jetty/jetty-server)
+			- Jetty :: Servlet Handling (org.eclipse.jetty:jetty-servlet:10.0.1 - https://eclipse.org/jetty/jetty-servlet)
+			- Jetty :: Utilities (org.eclipse.jetty:jetty-util:10.0.1 - https://eclipse.org/jetty/jetty-util)
+			- Jetty :: Webapp Application Support (org.eclipse.jetty:jetty-webapp:10.0.1 - https://eclipse.org/jetty/jetty-webapp)
+			- Jetty :: XML utilities (org.eclipse.jetty:jetty-xml:10.0.1 - https://eclipse.org/jetty/jetty-xml)
         BSD:
 			- asm (org.ow2.asm:asm:7.1 - http://asm.ow2.org/)
 			- asm-analysis (org.ow2.asm:asm-analysis:7.1 - http://asm.ow2.org/)
 			- asm-commons (org.ow2.asm:asm-commons:7.1 - http://asm.ow2.org/)
 			- asm-tree (org.ow2.asm:asm-tree:7.1 - http://asm.ow2.org/)
 			- asm-util (org.ow2.asm:asm-util:7.1 - http://asm.ow2.org/)
-        Eclipse Public License - Version 1.0:
-			- Jetty :: Http Utility (org.eclipse.jetty:jetty-http:9.4.36.v20210114 - https://eclipse.org/jetty/jetty-http)
-			- Jetty :: IO Utility (org.eclipse.jetty:jetty-io:9.4.36.v20210114 - https://eclipse.org/jetty/jetty-io)
-			- Jetty :: Security (org.eclipse.jetty:jetty-security:9.4.36.v20210114 - https://eclipse.org/jetty/jetty-security)
-			- Jetty :: Server Core (org.eclipse.jetty:jetty-server:9.4.36.v20210114 - https://eclipse.org/jetty/jetty-server)
-			- Jetty :: Servlet Handling (org.eclipse.jetty:jetty-servlet:9.4.36.v20210114 - https://eclipse.org/jetty/jetty-servlet)
-			- Jetty :: Utilities (org.eclipse.jetty:jetty-util:9.4.36.v20210114 - https://eclipse.org/jetty/jetty-util)
-			- Jetty :: Utilities :: Ajax(JSON) (org.eclipse.jetty:jetty-util-ajax:9.4.36.v20210114 - https://eclipse.org/jetty/jetty-util-ajax)
-			- Jetty :: Webapp Application Support (org.eclipse.jetty:jetty-webapp:9.4.36.v20210114 - https://eclipse.org/jetty/jetty-webapp)
-			- Jetty :: XML utilities (org.eclipse.jetty:jetty-xml:9.4.36.v20210114 - https://eclipse.org/jetty/jetty-xml)
+        Eclipse Public License - Version 2.0:
+			- Jetty :: Http Utility (org.eclipse.jetty:jetty-http:10.0.1 - https://eclipse.org/jetty/jetty-http)
+			- Jetty :: IO Utility (org.eclipse.jetty:jetty-io:10.0.1 - https://eclipse.org/jetty/jetty-io)
+			- Jetty :: Security (org.eclipse.jetty:jetty-security:10.0.1 - https://eclipse.org/jetty/jetty-security)
+			- Jetty :: Server Core (org.eclipse.jetty:jetty-server:10.0.1 - https://eclipse.org/jetty/jetty-server)
+			- Jetty :: Servlet Handling (org.eclipse.jetty:jetty-servlet:10.0.1 - https://eclipse.org/jetty/jetty-servlet)
+			- Jetty :: Utilities (org.eclipse.jetty:jetty-util:10.0.1 - https://eclipse.org/jetty/jetty-util)
+			- Jetty :: Webapp Application Support (org.eclipse.jetty:jetty-webapp:10.0.1 - https://eclipse.org/jetty/jetty-webapp)
+			- Jetty :: XML utilities (org.eclipse.jetty:jetty-xml:10.0.1 - https://eclipse.org/jetty/jetty-xml)
         Eclipse Public License - v 2.0:
 			- jnr-posix (com.github.jnr:jnr-posix:3.0.54 - http://nexus.sonatype.org/oss-repository-hosting.html/jnr-posix)
         GPLv2:
 			- jnr-posix (com.github.jnr:jnr-posix:3.0.54 - http://nexus.sonatype.org/oss-repository-hosting.html/jnr-posix)
         GPLv2+CE:
-			- Java Servlet API (javax.servlet:javax.servlet-api:3.1.0 - http://servlet-spec.java.net)
+			- Java Servlet API (javax.servlet:javax.servlet-api:4.0.1 - https://javaee.github.io/servlet-spec/)
 			- javafx-base (org.openjfx:javafx-base:15 - https://openjdk.java.net/projects/openjfx/javafx-base/)
 			- javafx-controls (org.openjfx:javafx-controls:15 - https://openjdk.java.net/projects/openjfx/javafx-controls/)
 			- javafx-fxml (org.openjfx:javafx-fxml:15 - https://openjdk.java.net/projects/openjfx/javafx-fxml/)
@@ -72,7 +70,7 @@ Cryptomator uses 46 third-party dependencies under the following licenses:
 			- Java Native Access (net.java.dev.jna:jna:5.7.0 - https://github.com/java-native-access/jna)
 			- Java Native Access Platform (net.java.dev.jna:jna-platform:5.7.0 - https://github.com/java-native-access/jna)
         MIT License:
-			- java jwt (com.auth0:java-jwt:3.12.0 - https://github.com/auth0/java-jwt)
+			- java jwt (com.auth0:java-jwt:3.13.0 - https://github.com/auth0/java-jwt)
 			- jnr-x86asm (com.github.jnr:jnr-x86asm:1.0.2 - http://github.com/jnr/jnr-x86asm)
 			- jnr-fuse (com.github.serceman:jnr-fuse:0.5.5 - https://github.com/SerCeMan/jnr-fuse)
 			- zxcvbn4j (com.nulab-inc:zxcvbn:1.3.0 - https://github.com/nulab/zxcvbn4j)