diff --git a/docker/Dockerfile b/docker/Dockerfile
index 0ac481c..d93fee6 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:20.04
+FROM ubuntu:22.04
 LABEL Description="prepare a docker image for executing codeql analysis on a repo"
 
 RUN mkdir /workdir
@@ -6,16 +6,17 @@ RUN mkdir /workdir/project2scan
 WORKDIR /workdir
 
 RUN apt-get update && \
-    apt-get upgrade -y
-RUN apt-get install -y ca-certificates && update-ca-certificates
-RUN apt-get install -y --no-install-recommends \
+    apt-get upgrade -y && \
+    apt-get install -y ca-certificates && update-ca-certificates && \
+    apt-get install -y --no-install-recommends \
     git \
     less \
     wget \
-    unzip
+    unzip && \
+    apt-get clean
 
 #SETUP Maven
-ENV MAVEN_VERSION 3.8.8
+ENV MAVEN_VERSION 3.9.4
 ENV MAVEN_HOME /usr/lib/mvn
 ENV PATH $MAVEN_HOME/bin:$PATH
 
@@ -24,8 +25,8 @@ RUN wget https://downloads.apache.org/maven/maven-3/$MAVEN_VERSION/binaries/apac
   rm apache-maven-$MAVEN_VERSION-bin.tar.gz && \
   mv apache-maven-$MAVEN_VERSION $MAVEN_HOME
 
-#SETUP codeql cli v2.14.3
-RUN wget https://github.com/github/codeql-cli-binaries/releases/download/v2.14.3/codeql-linux64.zip && \
+#SETUP codeql cli v2.14.6
+RUN wget https://github.com/github/codeql-cli-binaries/releases/download/v2.14.6/codeql-linux64.zip && \
   unzip codeql-linux64.zip && \
   rm codeql-linux64.zip
 
diff --git a/docker/README.md b/docker/README.md
index 62f7f03..d2e3a51 100644
--- a/docker/README.md
+++ b/docker/README.md
@@ -9,7 +9,7 @@ JAVA runtime provided by CodeQL CLI is used
 Pull from [DockerHub](https://hub.docker.com/r/arburk/codeql-analyzer-java): 
 `docker pull arburk/codeql-analyzer-java`  
 or build image like following:
-`docker build . -t arburk/codeql-analyzer-java:2.14.3`
+`docker build . -t arburk/codeql-analyzer-java:2.14.6`
 
 The project to scan needs to be mounted into ___/workdir/project2scan/___ like following:
-`docker run -v c:/dev/repos/myJavaProject:/workdir/project2scan arburk/codeql-analyzer-java:2.14.3`
+`docker run -v c:/dev/repos/myJavaProject:/workdir/project2scan arburk/codeql-analyzer-java:2.14.6`