diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0e4096d9..615bee59 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -194,7 +194,7 @@ jobs:
         miniforge-version: "latest"
         miniforge-variant: Mambaforge
         use-mamba: true
-      if: contains(matrix.OS_NAME, 'Windows')
+      if: ${{ ! contains(matrix.OS_NAME, 'Linux') }}
 
     - name: Build and test miniforge
       env:
diff --git a/Miniforge3/construct.yaml b/Miniforge3/construct.yaml
index 8869012d..599cdb98 100644
--- a/Miniforge3/construct.yaml
+++ b/Miniforge3/construct.yaml
@@ -1,7 +1,7 @@
 {% set name = os.environ.get("MINIFORGE_NAME", "Miniforge3") %}
-{% set version = os.environ.get("MINIFORGE_VERSION", "23.3.1-0") %}
-{% set conda_libmamba_solver_version = "23.3.0"%}
-{% set mamba_version = "1.4.2"%}
+{% set version = os.environ.get("MINIFORGE_VERSION", "23.10.0-0") %}
+{% set conda_libmamba_solver_version = "23.11.1"%}
+{% set mamba_version = "1.5.3"%}
 
 name: {{ name }}
 version: {{ version }}
diff --git a/build_miniforge_osx.sh b/build_miniforge_osx.sh
index ed86225f..e8473b4a 100755
--- a/build_miniforge_osx.sh
+++ b/build_miniforge_osx.sh
@@ -1,32 +1,8 @@
 #!/bin/bash
 
-set -e
-set -x
+set -eux
 
-echo "Installing a fresh version of Miniforge3."
-# Keep variable names in sync with
-# https://github.com/conda-forge/docker-images/blob/main/scripts/run_commands
-miniforge_arch="$(uname -m)"
-miniforge_version="4.14.0-0"
-condapkg="https://github.com/conda-forge/miniforge/releases/download/${miniforge_version}/Mambaforge-${miniforge_version}-MacOSX-${miniforge_arch}.sh"
-if [ "$(uname -m)" = "x86_64" ]; then
-   conda_checksum="949f046b4404cc8e081807b048050e6642d8db5520c20d5158a7ef721fbf76c5"
-elif [ "$(uname -m)" = "arm64" ]; then
-   conda_checksum="35d05a65e19b8e5d596964936ddd6023ae66d664a25ba291a52fec18f06a73b6"
-else
-   exit 1
-fi
-curl -s -L "$condapkg" -o miniconda.sh
-openssl sha256 miniconda.sh | grep $conda_checksum
-
-bash miniconda.sh -b -p ~/conda
-
-echo "Configuring conda."
-# shellcheck disable=SC1090
-source ~/conda/bin/activate root
-
-export CONSTRUCT_ROOT="${PWD}"
-mkdir -p build
+eval "$(PS1="${PS1-}" conda shell.posix activate)"
 
 bash scripts/build.sh
 # shellcheck disable=SC2154