diff --git a/client/rpc/src/main/kotlin/net/corda/client/rpc/internal/RPCClientProxyHandler.kt b/client/rpc/src/main/kotlin/net/corda/client/rpc/internal/RPCClientProxyHandler.kt
index 3cff1c3339..ba8e70786d 100644
--- a/client/rpc/src/main/kotlin/net/corda/client/rpc/internal/RPCClientProxyHandler.kt
+++ b/client/rpc/src/main/kotlin/net/corda/client/rpc/internal/RPCClientProxyHandler.kt
@@ -345,7 +345,7 @@ internal class RPCClientProxyHandler(
                     impersonatedActor,
                     rpcClientTelemetry.telemetryService.getCurrentTelemetryData()
             )
-            val replyFuture = SettableFuture.create<Any>()
+            val replyFuture = SettableFuture.create<Any?>()
             require(rpcReplyMap.put(replyId, replyFuture) == null) {
                 "Generated several RPC requests with same ID $replyId"
             }
diff --git a/constants.properties b/constants.properties
index 6dc1358215..53e63d1636 100644
--- a/constants.properties
+++ b/constants.properties
@@ -16,7 +16,7 @@ internalPublishVersion=1.+
 platformVersion=140
 openTelemetryVersion=1.20.1
 openTelemetrySemConvVersion=1.20.1-alpha
-guavaVersion=28.0-jre
+guavaVersion=33.1.0-jre
 quasarVersion=0.9.0_r3
 dockerJavaVersion=3.2.5
 proguardVersion=7.3.1
@@ -28,7 +28,7 @@ typesafeConfigVersion=1.3.4
 jsr305Version=3.0.2
 artifactoryPluginVersion=4.16.1
 snakeYamlVersion=1.33
-caffeineVersion=2.9.3
+caffeineVersion=3.1.8
 metricsVersion=4.1.0
 metricsNewRelicVersion=1.1.1
 openSourceBranch=https://github.com/corda/corda/blob/release/os/4.4
@@ -47,9 +47,9 @@ capsuleVersion=1.0.4_r3
 asmVersion=9.5
 artemisVersion=2.32.0
 # TODO Upgrade Jackson only when corda is using kotlin 1.3.10
-jacksonVersion=2.13.5
-jacksonKotlinVersion=2.9.7
-jettyVersion=9.4.53.v20231009
+jacksonVersion=2.17.0
+jacksonKotlinVersion=2.17.0
+jettyVersion=9.4.54.v20240208
 jerseyVersion=2.25
 servletVersion=4.0.1
 assertjVersion=3.12.2
diff --git a/serialization/src/test/java/net/corda/serialization/internal/amqp/JavaGenericsTest.java b/serialization/src/test/java/net/corda/serialization/internal/amqp/JavaGenericsTest.java
index 2480c7966f..dc573867c1 100644
--- a/serialization/src/test/java/net/corda/serialization/internal/amqp/JavaGenericsTest.java
+++ b/serialization/src/test/java/net/corda/serialization/internal/amqp/JavaGenericsTest.java
@@ -6,7 +6,6 @@ import net.corda.serialization.internal.amqp.custom.BigIntegerSerializer;
 import net.corda.serialization.internal.amqp.testutils.AMQPTestUtilsKt;
 import net.corda.serialization.internal.amqp.testutils.TestSerializationContext;
 import org.hamcrest.CoreMatchers;
-import org.junit.Assert;
 import org.junit.Test;
 
 import java.io.NotSerializableException;
@@ -14,6 +13,7 @@ import java.math.BigInteger;
 import java.util.*;
 
 import static net.corda.serialization.internal.amqp.testutils.AMQPTestUtilsKt.testDefaultFactory;
+import static org.hamcrest.MatcherAssert.assertThat;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
 @SuppressWarnings("unchecked")
@@ -160,7 +160,7 @@ public class JavaGenericsTest {
         SerializedBytes<?> bytes = ser.serialize(genericList, TestSerializationContext.testSerializationContext);
         DeserializationInput des = new DeserializationInput(factory);
         HolderOfGeneric<GenericClassWithList<ConcreteClass>> genericList2 = des.deserialize(bytes, HolderOfGeneric.class, TestSerializationContext.testSerializationContext);
-        Assert.assertThat(genericList, CoreMatchers.is(CoreMatchers.equalTo(genericList2)));
+        assertThat(genericList, CoreMatchers.is(CoreMatchers.equalTo(genericList2)));
 
     }
 
@@ -174,7 +174,7 @@ public class JavaGenericsTest {
         SerializedBytes<?> bytes = ser.serialize(genericMap, TestSerializationContext.testSerializationContext);
         DeserializationInput des = new DeserializationInput(factory);
         GenericClassWithMap<ConcreteClass, BigInteger> genericMap2 = des.deserialize(bytes, GenericClassWithMap.class, TestSerializationContext.testSerializationContext);
-        Assert.assertThat(genericMap2, CoreMatchers.is(CoreMatchers.equalTo(genericMap2)));
+        assertThat(genericMap2, CoreMatchers.is(CoreMatchers.equalTo(genericMap2)));
     }
 
     @Test