diff --git a/.scripts/build_steps.sh b/.scripts/build_steps.sh
index a85ae38b..beba4b58 100755
--- a/.scripts/build_steps.sh
+++ b/.scripts/build_steps.sh
@@ -29,6 +29,7 @@ GET_BOA=boa
 BUILD_CMD=mambabuild
 
 conda install --yes --quiet "conda-forge-ci-setup=3" conda-build pip ${GET_BOA:-} -c conda-forge
+conda update --yes -c conda-forge/label/lief_dev -c conda-forge py-lief
 
 # set up the condarc
 setup_conda_rc "${FEEDSTOCK_ROOT}" "${RECIPE_ROOT}" "${CONFIG_FILE}"
diff --git a/.scripts/run_osx_build.sh b/.scripts/run_osx_build.sh
index d6de1234..15783f8a 100755
--- a/.scripts/run_osx_build.sh
+++ b/.scripts/run_osx_build.sh
@@ -26,7 +26,7 @@ conda activate base
 
 echo -e "\n\nInstalling conda-forge-ci-setup=3 and conda-build."
 conda install -n base --quiet --yes "conda-forge-ci-setup=3" conda-build pip ${GET_BOA:-}
-
+conda update --yes -c conda-forge/label/lief_dev -c conda-forge py-lief
 
 
 echo -e "\n\nSetting up the condarc and mangling the compiler."