diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index dac316dbacf..f0118fb71ae 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -195,7 +195,7 @@ jobs:
       - uses: actions/setup-python@v4
         with:
           python-version: '3.10'
-      - run: pip install --user PyYAML docker-compose wheel
+      - run: pip install --user PyYAML==5.3.1 docker-compose==1.29.2
 
       - name: Init Git
         run:
diff --git a/docker-compose.yaml b/docker-compose.yaml
index 78e3d5443c4..4dfb4b20893 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -55,6 +55,8 @@ services:
     restart: unless-stopped
     environment:
       - TILEGENERATION_CONFIGFILE=/etc/tilegeneration/config.yaml
+      - TILECLOUD_CHAIN_SESSION_SECRET=1234
+      - TILECLOUD_CHAIN_SESSION_SALT=1234
     volumes:
       - ./docker/test-tilecloudchain:/etc/tilegeneration
 
diff --git a/docker/qgisserver/Dockerfile b/docker/qgisserver/Dockerfile
index ae807101931..0000b732725 100644
--- a/docker/qgisserver/Dockerfile
+++ b/docker/qgisserver/Dockerfile
@@ -11,13 +11,16 @@ COPY python/ /tmp/python/
 
 RUN apt-get update && \
     apt-get upgrade --assume-yes && \
-    apt-get install --assume-yes --no-install-recommends libpython3-dev libpq-dev gcc && \
+    apt-get install --assume-yes --no-install-recommends libpython3-dev libpq-dev gcc cython3 && \
     apt-get clean && \
     rm --recursive --force /var/lib/apt/lists/* && \
+    ln -s /usr/bin/cython3 /usr/bin/cython && \
     cd /tmp/python/$(python3 --version|awk '{print $2}'|awk -F '.' '{print $1 "." $2}') && \
-    PIP_NO_BINARY=shapely pipenv sync --system --clear && \
+    PIP_NO_BINARY=shapely pipenv sync --system --clear --verbose && \
+    python -c 'import yaml' && \
     rm -rf /root/.local/share/virtualenv /root/.local/share/virtualenvs && \
-    apt-get remove --assume-yes libpython3-dev libpq-dev gcc
+    rm -rf /usr/bin/cython && \
+    apt-get remove --assume-yes libpython3-dev libpq-dev gcc cython3
 
 #############################################################################################################
 
diff --git a/docker/qgisserver/docker-compose.yaml b/docker/qgisserver/docker-compose.yaml
index 92e983f75a5..233c18c6f5a 100644
--- a/docker/qgisserver/docker-compose.yaml
+++ b/docker/qgisserver/docker-compose.yaml
@@ -28,6 +28,7 @@ services:
       - QGIS_PROJECT_FILE=/etc/qgisserver/project.qgz
       - QGIS_SERVER_IGNORE_BAD_LAYERS=true
       - LOG_LEVEL=DEBUG
+      - QGIS_SERVER_LOG_LEVEL=0
       - QGIS_CATCH_SEGV=1
 
   tests: