diff --git a/config/binary/packages_conda.txt b/config/binary/packages_conda.txt
index 48fc35e..f26148b 100644
--- a/config/binary/packages_conda.txt
+++ b/config/binary/packages_conda.txt
@@ -5,3 +5,4 @@ jupyterlab
 wurlitzer
 plotly
 plotly-resampler
+skyfield
diff --git a/config/binary/packages_pip.txt b/config/binary/packages_pip.txt
index 5653739..127e11f 100644
--- a/config/binary/packages_pip.txt
+++ b/config/binary/packages_pip.txt
@@ -3,8 +3,7 @@ quaternionarray
 pysm3
 # Uncomment here if installing wheel, and comment out
 # line in packages_local.txt
-posix-ipc
-toast==3.0.0a20
+toast==3.0.0a23
 pysqlite3-wheels
 qpoint
 so3g
diff --git a/config/binary/post_install.sh b/config/binary/post_install.sh
index 5b3bcce..daa1539 100644
--- a/config/binary/post_install.sh
+++ b/config/binary/post_install.sh
@@ -13,3 +13,8 @@ install_module=yes
 install_jupyter_setup=yes
 
 # Add any other shell commands here for this system...
+
+# Forcibly replace the conda pyfftw package with the wheel
+# until this upstream PR is merged:
+# https://github.com/conda-forge/pyfftw-feedstock/pull/60
+pip install --upgrade --no-deps --force-reinstall pyfftw
diff --git a/config/minimal/packages_conda.txt b/config/minimal/packages_conda.txt
index 0595a81..a3a4617 100644
--- a/config/minimal/packages_conda.txt
+++ b/config/minimal/packages_conda.txt
@@ -1,3 +1,4 @@
 # Adjust the default python version
 python=3.11.*
 #
+skyfield
diff --git a/config/minimal/packages_pip.txt b/config/minimal/packages_pip.txt
index 5653739..127e11f 100644
--- a/config/minimal/packages_pip.txt
+++ b/config/minimal/packages_pip.txt
@@ -3,8 +3,7 @@ quaternionarray
 pysm3
 # Uncomment here if installing wheel, and comment out
 # line in packages_local.txt
-posix-ipc
-toast==3.0.0a20
+toast==3.0.0a23
 pysqlite3-wheels
 qpoint
 so3g