diff --git a/README.md b/README.md
index 6de54ec..854a0ee 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ This repository provides instructions and helper scripts to install [Immich](htt
 
  * This guide installs Immich to `/var/lib/immich`. To change it, replace it to the directory you want in this README and `install.sh`'s `$IMMICH_PATH`.
 
- * The [install.sh](install.sh) script currently is using Immich v1.117.0. It should be noted that due to the fast-evolving nature of Immich, the install script may get broken if you replace the `$TAG` to something more recent.
+ * The [install.sh](install.sh) script currently is using Immich v1.117.0. It should be noted that due to the fast-evolving nature of Immich, the install script may get broken if you replace the `$REV` to something more recent.
 
  * `mimalloc` is deliberately disabled as this is a native install and sharing system library makes more sense.
 
diff --git a/install.sh b/install.sh
index 9267a42..9a12de0 100755
--- a/install.sh
+++ b/install.sh
@@ -2,7 +2,7 @@
 
 set -xeuo pipefail
 
-TAG=v1.117.0
+REV=v1.117.0
 
 IMMICH_PATH=/var/lib/immich
 APP=$IMMICH_PATH/app
@@ -41,9 +41,14 @@ mkdir -p $IMMICH_PATH/home
 echo 'umask 077' > $IMMICH_PATH/home/.bashrc
 
 TMP=/tmp/immich-$(uuidgen)
-git clone https://github.com/immich-app/immich $TMP
+if [[ $REV =~ ^[0-9A-Fa-f]+$ ]]; then
+  # REV is a full commit hash, full clone is required
+  git clone https://github.com/immich-app/immich $TMP
+else
+  git clone https://github.com/immich-app/immich $TMP --depth=1 -b $REV
+fi
 cd $TMP
-git reset --hard $TAG
+git reset --hard $REV
 rm -rf .git
 
 # Use 127.0.0.1