diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3546894..16e04b2 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -12,7 +12,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Install poetry
-        run: pipx install poetry
+        run: pipx install poetry==1.8
       - name: test
         uses: ./.github/start-server
       - uses: actions/upload-artifact@v4
diff --git a/Dockerfile b/Dockerfile
index bbdce4a..f2aac36 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,7 @@
 ARG EIDOLON_VERSION=latest
 FROM python:3.11-slim AS builder
-RUN pip install poetry
+RUN pip install poetry==1.8
 RUN poetry config virtualenvs.create false --local
-RUN poetry self add poetry-plugin-export
 COPY pyproject.toml pyproject.toml
 RUN poetry remove --lock eidolon-ai-sdk
 COPY components/ components/
diff --git a/pyproject.toml b/pyproject.toml
index fa18e27..fceb6bb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,5 +21,5 @@ chromadb = "^0.5.15"
 asyncio_mode = "auto"
 
 [build-system]
-requires = ["poetry-core"]
+requires = ["poetry-core>=1.0.0,<2.0.0"]
 build-backend = "poetry.core.masonry.api"