diff --git a/neko/update/docker.sh b/neko/update/docker.sh
index eb57478aa..753d7ce53 100644
--- a/neko/update/docker.sh
+++ b/neko/update/docker.sh
@@ -4,16 +4,16 @@ set -eu
 . neko/update/utils
 
 pull() {
-  say "Pulling the image..."
+  say 'Pulling the image...'
   docker pull docker.io/naskya/firefish
 }
 
 if ! pull; then
-  say "awawa, the image may not be compatible with your environment..."
-  say "Gonnya try building the image locally!"
+  say 'awawa, the image may not be compatible with your environment...'
+  say 'Gonnya try building the image locally!'
 
-  say "It takes some time! Why not brew a cup of cofe?"
+  say 'It takes some time! Why not brew a cup of cofe?'
   docker build --tag docker.io/naskya/firefish --build-arg VERSION="$(version)" .
 fi
 
-say "Done!"
+say 'Done!'
diff --git a/neko/update/native.sh b/neko/update/native.sh
index e1ee0acc0..edbb00938 100755
--- a/neko/update/native.sh
+++ b/neko/update/native.sh
@@ -4,58 +4,56 @@ set -eu
 . neko/update/utils
 
 # Confirm that the server is stopped
-if [ $# != 1 ] || [ "$1" != "--skip-all-confirmations" ]; then
-  say "Did you stop your server?"
-  printf "[Y/n] > "
+if [ "$#" != '1' ] || [ "$1" != '--skip-all-confirmations' ]; then
+  say 'Did you stop your server?'
+  printf '[Y/n] > '
   read -r yn
 
   case "${yn}" in
     [Nn]|[Nn][Oo])
-      say "You must stop your server first!"
+      say 'You must stop your server first!'
       exit 1
       ;;
     *)
-      say "uwu~ erai erai!"
+      say 'uwu~ erai erai!'
       br
       ;;
   esac
 fi
 
 # write version info
-say "Writing version info to package.json..."
+say 'Writing version info to package.json...'
 
-running "sed \"s/\\\"version\\\": \\\"\\([^+][^+]*\\).*\\\",$/\\\"version\\\": \\\"\\\\1+neko:$(version)\\\",/\" package.json > package.json.new && mv -- package.json.new package.json"
+run "$(cat - << EOC
 sed "s/\"version\": \"\([^+][^+]*\).*\",$/\"version\": \"\\1+neko:$(version)\",/" package.json > package.json.new && mv -- package.json.new package.json
+EOC
+)"
 
-say "Done!"
+say 'Done!'
 br
 
 # install dependencies
-say "Upgrading dependencies..."
+say 'Upgrading dependencies...'
 
-running "corepack prepare pnpm@latest --activate"
-corepack prepare pnpm@latest --activate
+run 'corepack prepare pnpm@latest --activate'
+run 'pnpm install --frozen-lockfile'
 
-running "pnpm install --frozen-lockfile"
-pnpm install --frozen-lockfile
-
-say "Done!"
+say 'Done!'
 br
 
 # build
-say "Start building Firefish."
-say "It takes some time! Why not brew a cup of cofe?"
+say 'Start building Firefish.'
+say 'It takes some time! Why not brew a cup of cofe?'
 
-running "NODE_OPTIONS=\"--max_old_space_size=3072\" NODE_ENV=\"production\" pnpm run rebuild"
-NODE_OPTIONS="--max_old_space_size=3072" NODE_ENV="production" pnpm run rebuild
+run 'NODE_OPTIONS="--max_old_space_size=3072" NODE_ENV="production" pnpm run rebuild'
 
 say "Done! We're almost there."
 br
 
 # prevent migration errors
 if [ ! -f packages/backend/native-utils/built/index.js ]; then
-  say "Something went wrong orz... Gonnya try fixing that."
-  running "cp neko/index.js packages/backend/native-utils/built/index.js"
+  say 'Something went wrong orz... Gonnya try fixing that.'
+  run 'cp neko/index.js packages/backend/native-utils/built/index.js'
   cp neko/index.js packages/backend/native-utils/built/index.js
 else
   say "It's going well so far!"
@@ -63,10 +61,8 @@ else
 fi
 
 # migrate
-say "Database migration time!"
+say 'Database migration time!'
+run 'NODE_OPTIONS="--max_old_space_size=3072" NODE_ENV="production" pnpm run migrate'
 
-running "NODE_OPTIONS=\"--max_old_space_size=3072\" NODE_ENV=\"production\" pnpm run migrate"
-NODE_OPTIONS="--max_old_space_size=3072" NODE_ENV="production" pnpm run migrate
-
-say "Done!"
+say 'Done!'
 br
diff --git a/neko/update/utils b/neko/update/utils
index ca10d4cac..3cad3dcf9 100644
--- a/neko/update/utils
+++ b/neko/update/utils
@@ -6,14 +6,15 @@ color() {
 
 say() {
   color 5  # magenta
-  printf "( ^-^) < %s\n" "$1"
+  printf '( ^-^) < %s\n' "$1"
   color
 }
 
-running() {
+run() {
   color 3  # yellow
   printf "[running] \$ %s\n" "$1"
   color
+  /bin/sh -c "$1"
 }
 
 br() {
@@ -23,5 +24,5 @@ br() {
 version() {
   COMMIT_DATE=$(git show --no-patch --pretty="%cs" FETCH_HEAD | sed -e "s/-//g" | cut -c 3-)
   COMMIT_HASH_INITIAL=$(printf "%s" "$(git rev-parse FETCH_HEAD)" | cut -c 1)
-  printf "%s.%s" "${COMMIT_DATE}" "${COMMIT_HASH_INITIAL}"
+  printf '%s.%s' "${COMMIT_DATE}" "${COMMIT_HASH_INITIAL}"
 }
diff --git a/update.sh b/update.sh
index d17a22b98..32acdcd41 100755
--- a/update.sh
+++ b/update.sh
@@ -3,33 +3,33 @@ set -eu
 
 . neko/update/utils
 
-say "Start upgrading Firefish!"
+say 'Start upgrading Firefish!'
 br
 
 # Pull changes
 ## git pull
 OLD_COMMIT=$(git rev-parse HEAD)
 
-say "Pulling changes from the remote repo..."
+say 'Pulling changes from the remote repo...'
 
-running "git checkout -- package.json packages/backend/assets"
+run 'git checkout -- package.json packages/backend/assets'
 git checkout -- package.json packages/backend/assets
 
-running "git pull --ff --no-edit --autostash --strategy-option theirs"
+run 'git pull --ff --no-edit --autostash --strategy-option theirs'
 git pull --ff --no-edit --autostash --strategy-option theirs
 
 NEW_COMMIT=$(git rev-parse HEAD)
-say "Pulled successfully!"
+say 'Pulled successfully!'
 br
 
 ## check if the update script itself is updated
-say "Checking if the update script itself has been modified by this update..."
-if [ "$(git diff "${OLD_COMMIT}" "${NEW_COMMIT}" update.sh neko/update)" != "" ]; then
-  say "Oh meow, that seems to be the case."
+say 'Checking if the update script itself has been modified by this update...'
+if [ "$(git diff "${OLD_COMMIT}" "${NEW_COMMIT}" update.sh neko/update)" != '' ]; then
+  say 'Oh meow, that seems to be the case.'
   say "I'm sorry to bother you, but please run this script again!"
   exit 1
 else
-  say "This script seems to be up-to-date!"
+  say 'This script seems to be up-to-date!'
   br
 fi
 
@@ -37,12 +37,12 @@ fi
 for message in neko/messages/*; do
   file=$(basename -- "${message}")
   if [ ! -f "neko/flags/${file}" ]; then
-    if [ $# != 1 ] || [ "$1" != "--skip-all-confirmations" ]; then
-      say "There is an important notice!"
+    if [ "$#" != '1' ] || [ "$1" != '--skip-all-confirmations' ]; then
+      say 'There is an important notice!'
       cat "${message}"
 
-      say "Continue? (Are you ready for upgrading?)"
-      printf "[y/N] > "
+      say 'Continue? (Are you ready for upgrading?)'
+      printf '[y/N] > '
       read -r yn
 
       case "${yn}" in
@@ -50,6 +50,7 @@ for message in neko/messages/*; do
           touch "neko/flags/${file}"
           say "Let's go!"
           say "To read the message again, run: \$ cat ${message}"
+          br
           ;;
         *)
           say "Okay, please run this script again when you're ready!"
@@ -62,8 +63,8 @@ for message in neko/messages/*; do
   fi
 done
 
-say "Do you use Docker?"
-printf "[y/N] > "
+say 'Do you use Docker?'
+printf '[y/N] > '
 read -r yn
 
 case "${yn}" in
@@ -76,4 +77,4 @@ case "${yn}" in
 esac
 
 # Done
-say "Enjoy your sabakan life~"
+say 'Enjoy your sabakan life~'