diff --git a/DockerfileUbuntu b/DockerfileUbuntu
index 8f6ddd5..161cdf0 100644
--- a/DockerfileUbuntu
+++ b/DockerfileUbuntu
@@ -1,6 +1,6 @@
 FROM ubuntu:latest
 
-RUN apt update && apt install libreadline-dev libcurl4-openssl-dev libssl-dev libncurses5-dev libncursesw5-dev libsqlite3-dev libreadline6-dev zlib1g-dev libbz2-dev libffi-dev liblzma-dev python3 python3-pip python3-venv libjson-c-dev vim htop git curl wget xterm valgrind ack irssi lynx -y
+RUN apt update && apt install libreadline-dev libcurl4-openssl-dev libssl-dev libncurses5-dev libncursesw5-dev libsqlite3-dev libreadline6-dev zlib1g-dev libbz2-dev libffi-dev liblzma-dev python3 python3-pip python3-venv libjson-c-dev vim htop git curl wget xterm valgrind ack irssi lynx tmux -y
 
 RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- --default-toolchain nightly -y