diff --git a/deploy/docker/Dockerfile.api b/deploy/docker/Dockerfile.api
index 971ec4f..c65e35d 100644
--- a/deploy/docker/Dockerfile.api
+++ b/deploy/docker/Dockerfile.api
@@ -3,8 +3,8 @@ FROM python:3.12-slim AS builder
 
 WORKDIR /build
 
-# Install Poetry
-RUN pip install --no-cache-dir poetry==1.8.0
+# Install Poetry and export plugin
+RUN pip install --no-cache-dir poetry==1.8.0 poetry-plugin-export
 
 # Copy dependency files
 COPY pyproject.toml poetry.lock ./
@@ -48,7 +48,7 @@ RUN pip install --no-cache-dir poetry-core
 RUN pip install --no-cache-dir /app
 
 # Set PYTHONPATH to ensure module can be imported
-ENV PYTHONPATH=/app/src:$PYTHONPATH
+ENV PYTHONPATH=/app/src
 
 # Create necessary directories
 RUN mkdir -p /app/logs /app/output
diff --git a/deploy/docker/Dockerfile.chat b/deploy/docker/Dockerfile.chat
index 0484fbd..0681a26 100644
--- a/deploy/docker/Dockerfile.chat
+++ b/deploy/docker/Dockerfile.chat
@@ -3,8 +3,8 @@ FROM python:3.12-slim AS builder
 
 WORKDIR /build
 
-# Install Poetry
-RUN pip install --no-cache-dir poetry==1.8.0
+# Install Poetry and export plugin
+RUN pip install --no-cache-dir poetry==1.8.0 poetry-plugin-export
 
 # Copy dependency files
 COPY pyproject.toml poetry.lock ./
diff --git a/deploy/docker/Dockerfile.worker b/deploy/docker/Dockerfile.worker
index c7372de..9d23612 100644
--- a/deploy/docker/Dockerfile.worker
+++ b/deploy/docker/Dockerfile.worker
@@ -3,8 +3,8 @@ FROM python:3.12-slim AS builder
 
 WORKDIR /build
 
-# Install Poetry
-RUN pip install --no-cache-dir poetry==1.8.0
+# Install Poetry and export plugin
+RUN pip install --no-cache-dir poetry==1.8.0 poetry-plugin-export
 
 # Copy dependency files
 COPY pyproject.toml poetry.lock ./
@@ -49,7 +49,7 @@ RUN pip install --no-cache-dir poetry-core
 RUN pip install --no-cache-dir /app
 
 # Set PYTHONPATH to ensure module can be imported
-ENV PYTHONPATH=/app/src:$PYTHONPATH
+ENV PYTHONPATH=/app/src
 
 # Create necessary directories
 RUN mkdir -p /app/logs /app/output