diff --git a/Dockerfile b/Dockerfile
index bd540d4..ac10154 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,7 +7,7 @@
 # Run the docker container -> run.sh
 # Get a shell in the container -> shell.sh
 
-FROM ubuntu:20.10
+FROM ubuntu:21.04
 ENV LC_CTYPE C.UTF-8
 ENV DEBIAN_FRONTEND=noninteractive
 COPY dot_rizinrc /root/.rizinrc
@@ -15,11 +15,13 @@ COPY dot_rizinrc /root/.rizinrc
 RUN apt-get update && \
 apt-get install -y build-essential jq strace ltrace curl wget rubygems gcc dnsutils netcat gcc-multilib net-tools \
   vim gdb gdb-multiarch python python3 python3-pip python3-dev libssl-dev libffi-dev wget git make procps \
-  libpcre3-dev libdb-dev libxt-dev libxaw7-dev emacs-nox && \
+  libpcre3-dev libdb-dev libxt-dev libxaw7-dev emacs-nox tmux && \
 pip install capstone requests pwntools r2pipe keystone-engine unicorn ropper meson ninja && \
 mkdir /tools && \
 cd /tools && git clone https://github.com/JonathanSalwan/ROPgadget && \
 cd /tools && git clone https://github.com/niklasb/libc-database && \
-cd /tools && git clone https://github.com/hugsy/gef && sh -c "$(curl -fsSL http://gef.blah.cat/sh)" && \ 
+cd /tools && git clone https://github.com/hugsy/gef && \
+wget -O /root/.gdbinit-gef.py -q https://github.com/hugsy/gef/raw/master/gef.py && \
+echo source /root/.gdbinit-gef.py >> /root/.gdbinit && \ 
 cd /tools && git clone --recurse-submodules https://github.com/rizinorg/rizin && \
 cd rizin && meson build && ninja -C build && ninja -C build install
diff --git a/README.md b/README.md
index a59420d..11928dd 100644
--- a/README.md
+++ b/README.md
@@ -4,10 +4,15 @@ Create a docker container that is purpose-built for binary exploitation using Li
 *Still working on getting this fully set up.* 
 
 ## Packages / Features
-- emacs-nox
-- rizin with a .radare2rc (rizin compatible?!)
+- Ubuntu 21.04
+- emacs-nox, vim, jq, stract, ltrace
+- rizin with a .rizinrc
 - gdb + gef
-- libc database 
+- libc database
+- ROPgadget
+- pwntools
+- ropper
+- unicorn
 
 ## Usage
 Build the docker container: `./build.sh`
diff --git a/dot_rizinrc b/dot_rizinrc
index 55f2815..5ba1368 100644
--- a/dot_rizinrc
+++ b/dot_rizinrc
@@ -1,5 +1,5 @@
-e asm.cmtright=true
-e asm.pseudo = true
+e asm.cmt.right=true
+e asm.pseudo=true
 eco darkda
-e scr.utf8 = true
-e dbg.slow = true
\ No newline at end of file
+e scr.utf8=true
+e dbg.slow=true
\ No newline at end of file