diff --git a/Dockerfile b/Dockerfile
index f62d27b..cc4eda4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:20.04
+FROM ubuntu:23.04
 
 # Stop ubuntu-20 interactive options.
 ENV DEBIAN_FRONTEND noninteractive
@@ -13,20 +13,13 @@ ENV llvm_version=16.0.0
 ENV HOME=/home/SVF-tools
 
 # Define dependencies.
-ENV lib_deps="g++-8 gcc-8 git zlib1g-dev libncurses5-dev libtinfo5 build-essential libssl-dev libpcre2-dev zip"
-ENV build_deps="wget xz-utils git gdb tcl"
+ENV lib_deps="cmake g++ gcc git zlib1g-dev libncurses5-dev libtinfo5 build-essential libssl-dev libpcre2-dev zip vim"
+ENV build_deps="wget xz-utils git gdb tcl python-is-python3"
 
 # Fetch dependencies.
-RUN apt-get update
+RUN apt-get update --fix-missing
 RUN apt-get install -y $build_deps $lib_deps
 
-# Install cmake and setup PATH
-ENV cmake_version="3.28.1"
-ENV arch="x86_64"
-RUN wget https://github.com/Kitware/CMake/releases/download/v$cmake_version/cmake-$cmake_version-linux-$arch.tar.gz -O cmake.tar.gz
-RUN tar -xf cmake.tar.gz -C /home && rm -f cmake.tar.gz
-ENV PATH=/home/cmake-${cmake_version}-linux-${arch}/bin:${PATH}
-
 # Fetch and build SVF source.
 RUN echo "Downloading LLVM and building SVF to " ${HOME}
 WORKDIR ${HOME}
@@ -35,7 +28,7 @@ WORKDIR ${HOME}/SVF
 RUN echo "Building SVF ..."
 RUN bash ./build.sh
 
-# Export SVF and llvm paths
+# Export SVF, llvm, z3 paths
 ENV PATH=${HOME}/SVF/Release-build/bin:$PATH
 ENV PATH=${HOME}/SVF/llvm-$llvm_version.obj/bin:$PATH
 ENV SVF_DIR=${HOME}/SVF