diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d7c9258..5cc7a27 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -53,7 +53,7 @@ jobs:
 
       - name: Install dependencies
         run: |
-          pip install "gemmology-cdl-parser @ git+https://github.com/gemmology-dev/cdl-parser.git"
+          pip install gemmology-cdl-parser
           pip install -e ".[dev]" -v
 
       - name: Verify native module loaded
@@ -103,7 +103,7 @@ jobs:
 
       - name: Install without native module
         run: |
-          pip install "gemmology-cdl-parser @ git+https://github.com/gemmology-dev/cdl-parser.git"
+          pip install gemmology-cdl-parser
           # Install without building native module (skip cmake)
           pip install numpy scipy pytest pytest-cov ruff mypy
           pip install -e . --no-build-isolation --config-settings=cmake.define.SKIP_NATIVE=ON || pip install -e .
@@ -146,7 +146,7 @@ jobs:
 
       - name: Install dependencies
         run: |
-          pip install "gemmology-cdl-parser @ git+https://github.com/gemmology-dev/cdl-parser.git"
+          pip install gemmology-cdl-parser
           pip install -e ".[dev]" --no-build-isolation || pip install numpy scipy ruff mypy
 
       - name: Lint with Ruff
@@ -173,7 +173,7 @@ jobs:
 
       - name: Install dependencies
         run: |
-          pip install "gemmology-cdl-parser @ git+https://github.com/gemmology-dev/cdl-parser.git"
+          pip install gemmology-cdl-parser
           # Install build deps and dev dependencies first, then package
           pip install scikit-build-core pybind11 numpy scipy pytest pytest-cov
           pip install -e . --no-build-isolation
diff --git a/.github/workflows/pypi-publish.yml b/.github/workflows/pypi-publish.yml
index 3d164ad..2f241a9 100644
--- a/.github/workflows/pypi-publish.yml
+++ b/.github/workflows/pypi-publish.yml
@@ -37,12 +37,16 @@ jobs:
           CIBW_BUILD: "cp310-* cp311-* cp312-* cp313-*"
           # Skip musllinux (Alpine) and PyPy
           CIBW_SKIP: "*-musllinux* pp*"
-          # Install Eigen before building (detect package manager)
+          # Skip in-container tests (CI already runs the full test suite).
+          # Testing inside cibuildwheel fails because scipy needs OpenBLAS
+          # to build from source in the manylinux container.
+          CIBW_TEST_SKIP: "*"
+          # Install Eigen and OpenBLAS before building
           CIBW_BEFORE_ALL_LINUX: |
             if command -v yum &> /dev/null; then
-              yum install -y eigen3-devel
+              yum install -y eigen3-devel openblas-devel
             elif command -v apt-get &> /dev/null; then
-              apt-get update && apt-get install -y libeigen3-dev
+              apt-get update && apt-get install -y libeigen3-dev libopenblas-dev
             fi
           CIBW_BEFORE_ALL_MACOS: |
             brew install eigen
@@ -53,9 +57,7 @@ jobs:
             CMAKE_PREFIX_PATH="C:\\ProgramData\\chocolatey\\lib\\eigen\\share\\eigen3\\cmake"
           # Install cdl-parser dependency before building
           CIBW_BEFORE_BUILD: >
-            pip install "gemmology-cdl-parser @ git+https://github.com/gemmology-dev/cdl-parser.git"
-          # Skip wheel test - cdl-parser dependency not available in cibuildwheel test env
-          # CIBW_TEST_COMMAND: python -c "from crystal_geometry import get_backend; print(f'Backend: {get_backend()}')"
+            pip install gemmology-cdl-parser
           # Repair wheels (bundle libraries)
           CIBW_REPAIR_WHEEL_COMMAND_LINUX: "auditwheel repair -w {dest_dir} {wheel}"
           CIBW_REPAIR_WHEEL_COMMAND_MACOS: "delocate-wheel -w {dest_dir} {wheel}"
diff --git a/pyproject.toml b/pyproject.toml
index fcd6731..af49d5a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -94,11 +94,12 @@ USE_OPENMP = "OFF"
 build = "cp310-* cp311-* cp312-* cp313-*"
 # Skip musllinux and PyPy
 skip = "*-musllinux* pp*"
-# Test the built wheel
-test-command = "python -c \"from crystal_geometry import get_backend; print(f'Backend: {get_backend()}')\""
+# Skip in-container tests (CI runs the full test suite separately).
+# Testing inside cibuildwheel fails because scipy needs OpenBLAS in manylinux.
+test-skip = "*"
 
 [tool.cibuildwheel.linux]
-before-all = "yum install -y eigen3-devel || (apt-get update && apt-get install -y libeigen3-dev)"
+before-all = "yum install -y eigen3-devel openblas-devel || (apt-get update && apt-get install -y libeigen3-dev libopenblas-dev)"
 repair-wheel-command = "auditwheel repair -w {dest_dir} {wheel}"
 
 [tool.cibuildwheel.macos]