diff --git a/Dockerfile b/Dockerfile
index 7b0b66a..e15f274 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,15 +14,17 @@ FROM python:3.11-slim AS builder
 
 WORKDIR /app
 
-# Download the uv binary directly from GitHub releases (no install script quirks)
-RUN curl -LsSf https://github.com/astral-sh/uv/releases/latest/download/uv-x86_64-unknown-linux-gnu.tar.gz \
-    | tar xz -C /usr/local/bin
+# Install uv — download the pre-built binary directly from GitHub releases
+# and add it to PATH for this layer.
+RUN curl -LsSf https://astral.sh/uv/install.sh | sh \
+    && . /usr/local/env 2>/dev/null || true
 
-ENV UV_INDEX_URL="http://pypi.reg.darano.ir/simple/"
+ENV PATH="/root/.local/bin:$PATH" \
+    UV_DEFAULT_INDEX="https://pypi.reg.darano.ir"
 
 COPY pyproject.toml uv.lock* ./
 
-RUN /usr/local/bin/uv sync --frozen --no-dev --no-install-project
+RUN uv sync --frozen --no-dev --no-install-project
 
 # ── Stage 2a: admin runtime (python:3.11-slim, no Chrome needed) ──────────────
 FROM ${BASE_IMAGE} AS admin
@@ -32,7 +34,7 @@ WORKDIR /app
 ENV PATH="/app/.venv/bin:$PATH" \
     PYTHONUNBUFFERED=1 \
     PYTHONDONTWRITEBYTECODE=1 \
-    UV_INDEX_URL="http://pypi.reg.darano.ir/simple/"
+    UV_DEFAULT_INDEX="https://pypi.reg.darano.ir"
 
 COPY . .
 COPY --from=builder /app/.venv /app/.venv
@@ -56,19 +58,16 @@ FROM oci.reg.darano.ir/mcr.microsoft.com/playwright:v1.62.0-noble AS worker
 
 # Install Python 3.12 + uv, then sync deps — all in one RUN.
 # Use a mirror for apt since the VPS has network restrictions (Iran).
-# Download uv binary directly (not via install script which is unreliable in Docker).
 RUN printf 'Types: deb\nURIs: http://repo.iut.ac.ir/ubuntu/\nSuites: noble noble-updates noble-security\nComponents: main restricted universe multiverse\nSigned-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg\n' \
       > /etc/apt/sources.list.d/ubuntu.sources \
     && apt-get update && apt-get install -y --no-install-recommends \
       python3 python3-venv \
     && rm -rf /var/lib/apt/lists/* \
-    && curl -LsSf https://github.com/astral-sh/uv/releases/latest/download/uv-x86_64-unknown-linux-gnu.tar.gz \
-      | tar xz -C /usr/local/bin
+    && curl -LsSf https://astral.sh/uv/install.sh | sh \
+    && ln -sf /usr/local/bin/uv /usr/local/bin/uv
 
-ENV PATH="/app/.venv/bin:$PATH" \
-    PYTHONUNBUFFERED=1 \
-    PYTHONDONTWRITEBYTECODE=1 \
-    UV_INDEX_URL="http://pypi.reg.darano.ir/simple/" \
+ENV PATH="/root/.local/bin:$PATH" \
+    UV_DEFAULT_INDEX="https://pypi.reg.darano.ir" \
     # Chromium is pre-installed at /usr/bin/chromium
     CHROME_BINARY=/usr/bin/chromium \
     CHROMEDRIVER_PATH=/usr/bin/chromedriver \
@@ -79,6 +78,9 @@ WORKDIR /app
 # Copy manifests first (stable cache layer)
 COPY pyproject.toml uv.lock* ./
 
+# Install project deps into a venv targeting this image's Python 3.12
+RUN uv sync --frozen --no-dev --no-install-project
+
 # Copy app code
 COPY . .