diff --git a/deploy/conda-dev-spec.template b/deploy/conda-dev-spec.template
index 88e51309c..2f1bd1133 100644
--- a/deploy/conda-dev-spec.template
+++ b/deploy/conda-dev-spec.template
@@ -16,7 +16,7 @@ mache={{ mache }}
 matplotlib-base>=3.9.0
 metis={{ metis }}
 moab={{ moab }}=*_tempest_*
-mosaic>=1.1.0,<2.0.0
+mosaic>=1.2.0,<2.0.0
 mpas_tools={{ mpas_tools }}
 nco
 netcdf4=*=nompi_*
diff --git a/polaris/version.py b/polaris/version.py
index f09f101b8..23a1c7617 100644
--- a/polaris/version.py
+++ b/polaris/version.py
@@ -1 +1 @@
-__version__ = '0.9.0-alpha.2'
+__version__ = '0.9.0-alpha.3'