diff --git a/ct/endurain.sh b/ct/endurain.sh
index ae372adf1..67ead130f 100644
--- a/ct/endurain.sh
+++ b/ct/endurain.sh
@@ -63,10 +63,7 @@ function update_script() {
     cd /opt/endurain/backend
     UV_VERSION=$(grep -Po 'required-version\s*=\s*"\K[^"]+' pyproject.toml 2>/dev/null || echo "0.11.18")
     UV_VERSION="$UV_VERSION" setup_uv
-    $STD poetry export -f requirements.txt --output requirements.txt --without-hashes
-    $STD uv venv --clear
-    $STD uv pip install -r requirements.txt
-    $STD uv pip install pytz
+    $STD uv sync --frozen --no-dev
     msg_ok "Backend Updated"
 
     msg_info "Starting Service"
diff --git a/install/endurain-install.sh b/install/endurain-install.sh
index d08ea29e6..ca34b2c4e 100644
--- a/install/endurain-install.sh
+++ b/install/endurain-install.sh
@@ -83,15 +83,7 @@ msg_info "Setting up Backend"
 cd /opt/endurain/backend
 UV_VERSION=$(grep -Po 'required-version\s*=\s*"\K[^"]+' pyproject.toml 2>/dev/null || echo "0.11.18")
 UV_VERSION="$UV_VERSION" setup_uv
-$STD uv tool install poetry
-$STD uv tool update-shell
-export PATH="/root/.local/bin:$PATH"
-$STD poetry self add poetry-plugin-export
-$STD poetry export -f requirements.txt --output requirements.txt --without-hashes
-$STD uv venv --clear
-sed -i '/exclude-newer/d' pyproject.toml
-$STD uv pip install -r requirements.txt
-$STD uv pip install pytz
+$STD uv sync --frozen --no-dev
 msg_ok "Setup Backend"
 
 msg_info "Creating Service"