diff --git a/packages/cpp/tools/BuildEnv.Dockerfile b/packages/cpp/tools/BuildEnv.Dockerfile
index 30cea8377..d0b1b4fc7 100644
--- a/packages/cpp/tools/BuildEnv.Dockerfile
+++ b/packages/cpp/tools/BuildEnv.Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:23.04
+FROM ubuntu:lunar-20231128
 
 RUN apt-get update && DEBIAN_FRONTEND="noninteractive" TZ="Europe/London" apt-get install -y \
     ssh \
diff --git a/packages/cpp/tools/Dockerfile.ubuntu b/packages/cpp/tools/Dockerfile.ubuntu
index ab2bddf3f..4a2d7c84b 100644
--- a/packages/cpp/tools/Dockerfile.ubuntu
+++ b/packages/cpp/tools/Dockerfile.ubuntu
@@ -1,5 +1,5 @@
 # Use the latest version of Ubuntu 20.04 as the base image
-FROM ubuntu:23.04
+FROM ubuntu:lunar-20231128
 
 # Install dependencies
 RUN apt-get update && DEBIAN_FRONTEND="noninteractive" TZ="Europe/London" apt-get install -y \
diff --git a/packages/java/pom.xml b/packages/java/pom.xml
index 45c41e740..9eacfd65d 100644
--- a/packages/java/pom.xml
+++ b/packages/java/pom.xml
@@ -16,34 +16,34 @@
     <protobuf-maven-plugin.version>0.6.1</protobuf-maven-plugin.version>
     <os-maven-plugin.version>1.7.1</os-maven-plugin.version>
     <proto.path>../../Protos/V1</proto.path>
-    <sl4j.version>2.0.12</sl4j.version>
-    <logback.version>1.5.5</logback.version>
+    <sl4j.version>2.0.13</sl4j.version>
+    <logback.version>1.5.6</logback.version>
   </properties>
 
   <dependencies>
     <dependency>
       <groupId>io.grpc</groupId>
       <artifactId>grpc-netty</artifactId>
-      <version>1.62.2</version>
+      <version>1.64.0</version>
     </dependency>
 
     <!-- https://mvnrepository.com/artifact/io.projectreactor/reactor-core -->
     <dependency>
       <groupId>io.projectreactor</groupId>
       <artifactId>reactor-core</artifactId>
-      <version>3.6.5</version>
+      <version>3.6.7</version>
     </dependency>
 
 
     <dependency>
       <groupId>io.grpc</groupId>
       <artifactId>grpc-protobuf</artifactId>
-      <version>1.62.2</version>
+      <version>1.64.0</version>
     </dependency>
     <dependency>
       <groupId>io.grpc</groupId>
       <artifactId>grpc-stub</artifactId>
-      <version>1.62.2</version>
+      <version>1.64.0</version>
     </dependency>
     <dependency>
       <groupId>org.xolstice.maven.plugins</groupId>
@@ -73,7 +73,7 @@
     <dependency>
       <groupId>org.junit.jupiter</groupId>
       <artifactId>junit-jupiter-engine</artifactId>
-      <version>5.10.2</version>
+      <version>5.10.3</version>
       <scope>test</scope>
     </dependency>
 
@@ -83,7 +83,7 @@
     <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-core</artifactId>
-      <version>5.11.0</version>
+      <version>5.12.0</version>
       <scope>test</scope>
     </dependency>
 
@@ -91,7 +91,7 @@
     <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-junit-jupiter</artifactId>
-      <version>5.11.0</version>
+      <version>5.12.0</version>
       <scope>test</scope>
     </dependency>