diff --git a/WORKSPACE b/WORKSPACE
index 258ce2d8b5..f948654159 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -60,7 +60,7 @@ container_pull(
 # get openjdk
 container_pull(
     name = "openjdk11",
-    digest = "sha256:07a404dc9d910d35d89f8c4ab31016162f820ebfd3ae88d2a10f9d4755b60364",  # 5.11.2021
+    digest = "sha256:14605eb0f24ce726e13c4a85862325083dee3ab13da847b7af20d0df5966c176",  # 29.11.2021
     registry = "docker.io",
     repository = "eclipse-temurin",
     # tag = "11-jre-focal", # Ubuntu 20.04
@@ -104,7 +104,7 @@ http_archive(
 # scala_config(scala_version = "2.11.12")
 load("@io_bazel_rules_scala//:scala_config.bzl", "scala_config")
 
-scala_config(scala_version = "2.13.6")
+scala_config(scala_version = "2.13.7")
 
 # register default and our custom scala toolchain
 load("@io_bazel_rules_scala//scala:toolchains.bzl", "scala_register_toolchains")
diff --git a/third_party/dependencies.bzl b/third_party/dependencies.bzl
index 6d059578bc..46b34fe335 100644
--- a/third_party/dependencies.bzl
+++ b/third_party/dependencies.bzl
@@ -49,12 +49,12 @@ def dependencies():
             ),
 
             # Logging
-            "com.typesafe.scala-logging:scala-logging_2.13:3.9.3",
-            "ch.qos.logback:logback-classic:1.2.3",
-            "ch.qos.logback:logback-core:1.2.3",
-            "org.slf4j:log4j-over-slf4j:1.7.29",
-            "org.slf4j:jcl-over-slf4j:1.7.29",
-            "org.slf4j:slf4j-api:1.7.29",
+            "com.typesafe.scala-logging:scala-logging_2.13:3.9.4",
+            "ch.qos.logback:logback-classic:1.2.8",
+            "ch.qos.logback:logback-core:1.2.8",
+            "org.slf4j:log4j-over-slf4j:1.7.32",
+            "org.slf4j:jcl-over-slf4j:1.7.32",
+            "org.slf4j:slf4j-api:1.7.32",
 
             # metrics
             "io.kamon:kamon-core_2.13:2.1.5",
diff --git a/third_party/versions.bzl b/third_party/versions.bzl
index 66e0c730fd..e0aedffbdf 100644
--- a/third_party/versions.bzl
+++ b/third_party/versions.bzl
@@ -1,7 +1,7 @@
 """Primary location for setting Knora-API project wide versions"""
 
-SCALA_VERSION = "2.13.5"
-AKKA_VERSION = "2.6.5"
+SCALA_VERSION = "2.13.7"
+AKKA_VERSION = "2.6.17"
 AKKA_HTTP_VERSION = "10.2.4"
 JENA_VERSION = "3.14.0"
 METRICS_VERSION = "4.0.1"
diff --git a/webapi/src/main/scala/org/knora/webapi/settings/KnoraSettings.scala b/webapi/src/main/scala/org/knora/webapi/settings/KnoraSettings.scala
index 8322f62a7d..410e657a0e 100644
--- a/webapi/src/main/scala/org/knora/webapi/settings/KnoraSettings.scala
+++ b/webapi/src/main/scala/org/knora/webapi/settings/KnoraSettings.scala
@@ -382,7 +382,7 @@ class KnoraSettingsImpl(config: Config, log: LoggingAdapter) extends Extension {
 
 object KnoraSettings extends ExtensionId[KnoraSettingsImpl] with ExtensionIdProvider {
 
-  override def lookup(): KnoraSettings.type = KnoraSettings
+  override def lookup: KnoraSettings.type = KnoraSettings
 
   override def createExtension(system: ExtendedActorSystem) =
     new KnoraSettingsImpl(system.settings.config, akka.event.Logging(system, this.getClass))