diff --git a/harbor.sh b/harbor.sh
index baa6557..100ebd5 100755
--- a/harbor.sh
+++ b/harbor.sh
@@ -1662,6 +1662,7 @@ update_harbor() {
     else
         harbor_version=$(resolve_harbor_version)
         log_info "Updating to version $harbor_version..."
+        git fetch --all --tags
         git checkout tags/$harbor_version
     fi
 
diff --git a/install.sh b/install.sh
index 47e19b3..242c14e 100755
--- a/install.sh
+++ b/install.sh
@@ -29,7 +29,8 @@ install_or_update_project() {
   if [ -d "$HARBOR_INSTALL_PATH" ]; then
     echo "Existing installation found. Updating..."
     cd "$HARBOR_INSTALL_PATH"
-    git pull
+    git fetch --all --tags
+    git checkout "tags/$HARBOR_VERSION"
   else
     echo "Cloning project repository..."
     git clone --depth 1 --branch "$HARBOR_VERSION" "$HARBOR_REPO_URL" "$HARBOR_INSTALL_PATH"