diff --git a/install.sh b/install.sh
index abf9deb..4bbee02 100644
--- a/install.sh
+++ b/install.sh
@@ -6,6 +6,15 @@ if [ ! -d ~/.oh-my-zsh ]; then
     sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)" "" --unattended
 fi
 
+# remove Powerlevel10k theme
+if [ -n $(sed -n '/Enable Powerlevel10k instant prompt/=' ~/.zshrc) ]; then
+    sed -i '1,6d' ~/.zshrc
+fi
+if [ -n $(sed -n '/source ~\/.p10k.zsh/=' ~/.zshrc) ]; then
+    sed -i -e '/# To customize prompt, run `p10k configure` or edit ~\/.p10k.zsh./d' ~/.zshrc
+    sed -i -e '/^\[\[ \! -f ~\/.p10k.zsh .*/d' ~/.zshrc
+fi
+
 # install starship theme & alias plugin
 if [ ! -d ~/.oh-my-zsh/custom/plugins/rainbow-alias ]; then
     mkdir -p ~/.oh-my-zsh/custom/plugins/rainbow-alias/