diff --git a/.update.sh b/.update.sh
index 5ef7ae2..6f250df 100644
--- a/.update.sh
+++ b/.update.sh
@@ -5,6 +5,7 @@ export DOTFILES=$( cd "$( dirname "${BASH_SOURCE[0]:-${(%):-%x}}" )" && pwd )
 dfs_commit=$(curl -fsSL https://api.beardic.cn/get-var/dfs-commit-id)
 if [[ ${#dfs_commit} != 40 ]]; then
     echo "Error: invalid commit id."
+    python3 "${DOTFILES}/post-log.py" "[ERROR] update.sh: invalid commit id: ${dfs_commit}"
     exit
 fi
 # fetch origin
@@ -12,14 +13,17 @@ cd $DOTFILES
 git fetch
 if [[ -n "$(git status -s)" ]]; then
     echo "Error: directory not clean."
+    python3 "${DOTFILES}/post-log.py" "[ERROR] update.sh: directory not clean"
     exit
 fi
 # update
 if [[ "$(git rev-parse HEAD)" == "$dfs_commit" ]]; then
     echo "Nothing to do."
+    python3 "${DOTFILES}/post-log.py" "[INFO] update.sh: Nothing to do"
 else
     echo "Checking out to commit $dfs_commit ..."
     git -c advice.detachedHead=false checkout $dfs_commit
     cp ./.update.sh ./update.sh
     chmod +x ./update.sh
+    python3 "${DOTFILES}/post-log.py" "[INFO] update.sh: Checked out to commit $dfs_commit"
 fi