Fix CI

.gitlab-ci.yml

@@ -45,7 +45,7 @@ test/py38:
     # dependencies not available in normal environments.
     - mamba create -n test python=3.8 ciecplib make
     - mamba activate test
-    - pip install -f wheelhouse dcc
+    - pip install wheelhouse/dcc-*-py3-none-any.whl
     # Install testing dependencies.
     - pip install pytest requests-mock
   script:
@@ -64,7 +64,7 @@ test/py310:
     # dependencies not available in normal environments.
     - mamba create -n test python=3.10 ciecplib make
     - mamba activate test
-    - pip install -f wheelhouse dcc
+    - pip install wheelhouse/dcc-*-py3-none-any.whl
     # Install testing dependencies.
     - pip install pytest requests-mock
   script:
@@ -87,7 +87,7 @@ docs/html:
     # dependencies not available in normal environments.
     - mamba create -n docs python=3.8 ciecplib make
     - mamba activate docs
-    - pip install -f wheelhouse dcc
+    - pip install wheelhouse/dcc-*-py3-none-any.whl
     # Install documentation dependencies.
     - pip install sphinx sphinxcontrib-programoutput insipid-sphinx-theme numpydoc
   script: