diff --git a/.github/workflows/ci_cd.yml b/.github/workflows/ci_cd.yml
index 97cda0caae..77d63b5854 100644
--- a/.github/workflows/ci_cd.yml
+++ b/.github/workflows/ci_cd.yml
@@ -50,17 +50,14 @@ jobs:
             pip-${{ runner.os }}
 
       # pre-commit needs all dev dependencies, since it also checks the test and example files
-      # TODO: remove 'poetry config installer.modern-installation false' once we use a pydata-sphinx-theme
-      # version where https://github.com/pydata/pydata-sphinx-theme/issues/1253 is resolved.
-      # The same needs to be removed in the README.
       - name: Install library, with all optional groups
         run: |
           git config --global url."https://${{ secrets.PYANSYS_CI_BOT_TOKEN }}@github.com/ansys-internal/ansys-api-acp".insteadOf "https://github.com/ansys-internal/ansys-api-acp"
           git config --global url."https://${{ secrets.PYANSYS_CI_BOT_TOKEN }}@github.com/ansys-internal/ansys-tools-filetransfer".insteadOf "https://github.com/ansys-internal/ansys-tools-filetransfer"
           git config --global url."https://${{ secrets.PYANSYS_CI_BOT_TOKEN }}@github.com/ansys-internal/ansys-api-tools-filetransfer".insteadOf "https://github.com/ansys-internal/ansys-api-tools-filetransfer"
           git config --global url."https://${{ secrets.PYANSYS_CI_BOT_TOKEN }}@github.com/ansys-internal/ansys-tools-local-product-launcher".insteadOf "https://github.com/ansys-internal/ansys-tools-local-product-launcher"
-          pip install poetry
-          poetry config installer.modern-installation false
+          pip install -U pip
+          pip install 'poetry!=1.7.0'
           poetry install --with dev,test
 
       - name: Install custom API branch if needed
@@ -104,7 +101,8 @@ jobs:
         run: |
           git config --global url."https://${{ secrets.PYANSYS_CI_BOT_TOKEN }}@github.com/ansys-internal/ansys-api-acp".insteadOf "https://github.com/ansys-internal/ansys-api-acp"
           git config --global url."https://${{ secrets.PYANSYS_CI_BOT_TOKEN }}@github.com/ansys-internal/ansys-tools-local-product-launcher".insteadOf "https://github.com/ansys-internal/ansys-tools-local-product-launcher"
-          pip install poetry
+          pip install -U pip
+          pip install 'poetry!=1.7.0'
           poetry build
 
       - name: Validate packages
@@ -149,7 +147,8 @@ jobs:
           git config --global url."https://${{ secrets.PYANSYS_CI_BOT_TOKEN }}@github.com/ansys-internal/ansys-tools-filetransfer".insteadOf "https://github.com/ansys-internal/ansys-tools-filetransfer"
           git config --global url."https://${{ secrets.PYANSYS_CI_BOT_TOKEN }}@github.com/ansys-internal/ansys-api-tools-filetransfer".insteadOf "https://github.com/ansys-internal/ansys-api-tools-filetransfer"
           git config --global url."https://${{ secrets.PYANSYS_CI_BOT_TOKEN }}@github.com/ansys-internal/ansys-tools-local-product-launcher".insteadOf "https://github.com/ansys-internal/ansys-tools-local-product-launcher"
-          pip install poetry
+          pip install -U pip
+          pip install 'poetry!=1.7.0'
           poetry install --with test
 
       - name: Install custom API branch if needed
@@ -230,7 +229,8 @@ jobs:
           git config --global url."https://${{ secrets.PYANSYS_CI_BOT_TOKEN }}@github.com/ansys-internal/ansys-tools-filetransfer".insteadOf "https://github.com/ansys-internal/ansys-tools-filetransfer"
           git config --global url."https://${{ secrets.PYANSYS_CI_BOT_TOKEN }}@github.com/ansys-internal/ansys-api-tools-filetransfer".insteadOf "https://github.com/ansys-internal/ansys-api-tools-filetransfer"
           git config --global url."https://${{ secrets.PYANSYS_CI_BOT_TOKEN }}@github.com/ansys-internal/ansys-tools-local-product-launcher".insteadOf "https://github.com/ansys-internal/ansys-tools-local-product-launcher"
-          pip install poetry
+          pip install -U pip
+          pip install 'poetry!=1.7.0'
           poetry install --with dev
 
       - name: Install custom API branch if needed