diff --git a/.github/workflows/build_check.yml b/.github/workflows/build_check.yml
index 95963d8aa..424121a06 100644
--- a/.github/workflows/build_check.yml
+++ b/.github/workflows/build_check.yml
@@ -13,19 +13,20 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - uses: conda-incubator/setup-miniconda@v3
-    - name: Install prereq using conda
+    - name: Install prereq and NumCosmo using conda
       run: |
         echo "$CONDA/bin" >> $GITHUB_PATH
-        conda install -c conda-forge gobject-introspection pygobject sphinx sphinx_rtd_theme nbconvert pandoc ipython
+        conda install -c conda-forge gobject-introspection pygobject numcosmo cmake swig setuptools_scm sphinx sphinx_rtd_theme nbconvert pandoc ipython
     - name: Install prereq using pip
       run: |
         pip install -r requirements.txt
     - name: Install the package
       run: |
         pip install .
-    - name: Install NumCosmo from conda-forge
-      run: |
-        conda install -c conda-forge numcosmo
+# temporarily moved up due to libarchive issue - see PR 620
+#    - name: Install NumCosmo from conda-forge
+#      run: |
+#        conda install -c conda-forge numcosmo
     - name: Install cluster_toolkit from source
       run: |
         git clone https://github.com/tmcclintock/cluster_toolkit.git
@@ -33,7 +34,8 @@ jobs:
         pip install .
     - name: Install CCL from source
       run: |
-        conda install -c conda-forge cmake swig setuptools_scm
+        # temporarily moved up due to libarchive issue - see PR 620
+        #conda install -c conda-forge cmake swig setuptools_scm
         git clone https://github.com/LSSTDESC/CCL
         cd CCL
         pip install --no-use-pep517 .
diff --git a/clmm/__init__.py b/clmm/__init__.py
index 8788f36a2..71f52c28b 100644
--- a/clmm/__init__.py
+++ b/clmm/__init__.py
@@ -26,4 +26,4 @@
 )
 from . import support
 
-__version__ = "1.12.2"
+__version__ = "1.12.3"