diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 238c819b4..4c677f6b9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,6 +10,7 @@ on:
       - 'pyproject.toml'
       - 'eoxserver/**'
       - 'autotest/**'
+      - 'requirements.txt'
 jobs:
   build-docker:
     runs-on: ubuntu-latest
diff --git a/eoxserver/services/ows/wps/processes/get_cloud_coverage.py b/eoxserver/services/ows/wps/processes/get_cloud_coverage.py
index f332711e7..e155b1287 100644
--- a/eoxserver/services/ows/wps/processes/get_cloud_coverage.py
+++ b/eoxserver/services/ows/wps/processes/get_cloud_coverage.py
@@ -295,4 +295,4 @@ def _create_geometry_feature_in_memory(wkt_geometry: str):
 
     yield memory_path
 
-    gdal.Unlink(memory_path)
+    drv.DeleteDataSource(memory_path)
diff --git a/requirements.txt b/requirements.txt
index 60388da28..5991b1543 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,6 +9,7 @@ psycopg2
 lxml
 pycql==0.0.8
 matplotlib
+numpy<2.0.0
 pyows>=0.2.6
 python-keystoneclient<6.0.0
 python-swiftclient<5.0.0