diff --git a/.ci_support/osx_64_python3.10.yaml b/.ci_support/osx_64_python3.10.yaml
index 84f0856..1988ca5 100644
--- a/.ci_support/osx_64_python3.10.yaml
+++ b/.ci_support/osx_64_python3.10.yaml
@@ -7,7 +7,7 @@ channel_targets:
 cxx_compiler:
 - clangxx
 cxx_compiler_version:
-- '15'
+- '16'
 macos_machine:
 - x86_64-apple-darwin13.4.0
 pin_run_as_build:
diff --git a/.ci_support/osx_64_python3.11.yaml b/.ci_support/osx_64_python3.11.yaml
index cbdd07a..0925552 100644
--- a/.ci_support/osx_64_python3.11.yaml
+++ b/.ci_support/osx_64_python3.11.yaml
@@ -7,7 +7,7 @@ channel_targets:
 cxx_compiler:
 - clangxx
 cxx_compiler_version:
-- '15'
+- '16'
 macos_machine:
 - x86_64-apple-darwin13.4.0
 pin_run_as_build:
diff --git a/.ci_support/osx_64_python3.9.yaml b/.ci_support/osx_64_python3.9.yaml
index ac01851..9760af0 100644
--- a/.ci_support/osx_64_python3.9.yaml
+++ b/.ci_support/osx_64_python3.9.yaml
@@ -7,7 +7,7 @@ channel_targets:
 cxx_compiler:
 - clangxx
 cxx_compiler_version:
-- '15'
+- '16'
 macos_machine:
 - x86_64-apple-darwin13.4.0
 pin_run_as_build:
diff --git a/.ci_support/osx_arm64_python3.10.yaml b/.ci_support/osx_arm64_python3.10.yaml
index c03545c..853e2f4 100644
--- a/.ci_support/osx_arm64_python3.10.yaml
+++ b/.ci_support/osx_arm64_python3.10.yaml
@@ -7,7 +7,7 @@ channel_targets:
 cxx_compiler:
 - clangxx
 cxx_compiler_version:
-- '15'
+- '16'
 macos_machine:
 - arm64-apple-darwin20.0.0
 pin_run_as_build:
diff --git a/.ci_support/osx_arm64_python3.11.yaml b/.ci_support/osx_arm64_python3.11.yaml
index 039b52b..39ed99b 100644
--- a/.ci_support/osx_arm64_python3.11.yaml
+++ b/.ci_support/osx_arm64_python3.11.yaml
@@ -7,7 +7,7 @@ channel_targets:
 cxx_compiler:
 - clangxx
 cxx_compiler_version:
-- '15'
+- '16'
 macos_machine:
 - arm64-apple-darwin20.0.0
 pin_run_as_build:
diff --git a/.ci_support/osx_arm64_python3.9.yaml b/.ci_support/osx_arm64_python3.9.yaml
index 13cdd3e..847784f 100644
--- a/.ci_support/osx_arm64_python3.9.yaml
+++ b/.ci_support/osx_arm64_python3.9.yaml
@@ -7,7 +7,7 @@ channel_targets:
 cxx_compiler:
 - clangxx
 cxx_compiler_version:
-- '15'
+- '16'
 macos_machine:
 - arm64-apple-darwin20.0.0
 pin_run_as_build:
diff --git a/.github/workflows/conda-build.yml b/.github/workflows/conda-build.yml
index 554f356..08012d3 100644
--- a/.github/workflows/conda-build.yml
+++ b/.github/workflows/conda-build.yml
@@ -3,56 +3,77 @@
 # -*- mode: yaml -*-
 
 name: Build conda package
-on: [push, pull_request]
+on:
+  push:
+
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
+  cancel-in-progress: true
 
 jobs:
   build:
     name: ${{ matrix.CONFIG }}
-    runs-on: ${{ matrix.os }}-latest
+    runs-on: ${{ matrix.runs_on }}
+    timeout-minutes: 360
     strategy:
       fail-fast: false
       matrix:
         include:
           - CONFIG: linux_64_python3.10
             UPLOAD_PACKAGES: True
-            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-cos7-x86_64
             os: ubuntu
+            runs_on: ['ubuntu-latest']
+            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-cos7-x86_64
           - CONFIG: linux_64_python3.11
             UPLOAD_PACKAGES: True
-            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-cos7-x86_64
             os: ubuntu
+            runs_on: ['ubuntu-latest']
+            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-cos7-x86_64
           - CONFIG: linux_64_python3.9
             UPLOAD_PACKAGES: True
-            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-cos7-x86_64
             os: ubuntu
+            runs_on: ['ubuntu-latest']
+            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-cos7-x86_64
           - CONFIG: win_64_python3.10
             UPLOAD_PACKAGES: True
             os: windows
+            runs_on: ['windows-latest']
           - CONFIG: win_64_python3.11
             UPLOAD_PACKAGES: True
             os: windows
+            runs_on: ['windows-latest']
           - CONFIG: win_64_python3.9
             UPLOAD_PACKAGES: True
             os: windows
+            runs_on: ['windows-latest']
           - CONFIG: osx_64_python3.10
             UPLOAD_PACKAGES: True
             os: macos
+            runs_on: ['macos-latest']
           - CONFIG: osx_64_python3.11
             UPLOAD_PACKAGES: True
             os: macos
+            runs_on: ['macos-latest']
           - CONFIG: osx_64_python3.9
             UPLOAD_PACKAGES: True
             os: macos
+            runs_on: ['macos-latest']
           - CONFIG: osx_arm64_python3.10
             UPLOAD_PACKAGES: True
             os: macos
+            runs_on: ['macos-latest']
           - CONFIG: osx_arm64_python3.11
             UPLOAD_PACKAGES: True
             os: macos
+            runs_on: ['macos-latest']
           - CONFIG: osx_arm64_python3.9
             UPLOAD_PACKAGES: True
             os: macos
+            runs_on: ['macos-latest']
     steps:
+
     - name: Checkout code
       uses: actions/checkout@v3
 
@@ -63,11 +84,15 @@ jobs:
         UPLOAD_PACKAGES: ${{ matrix.UPLOAD_PACKAGES }}
         DOCKER_IMAGE: ${{ matrix.DOCKER_IMAGE }}
         CI: github_actions
-        BINSTAR_TOKEN: ${{ secrets.ANACONDA_API_TOKEN }}
+        CONDA_FORGE_DOCKER_RUN_ARGS: "${{ matrix.CONDA_FORGE_DOCKER_RUN_ARGS }}"
+        BINSTAR_TOKEN: ${{ secrets.BINSTAR_TOKEN }}
       shell: bash
       run: |
         echo "::group::Configure binfmt_misc"
         docker run --rm --privileged multiarch/qemu-user-static:register --reset --credential yes
+        export flow_run_id="github_$GITHUB_RUN_ID"
+        export remote_url="https://github.com/$GITHUB_REPOSITORY"
+        export sha="$GITHUB_SHA"
         export FEEDSTOCK_NAME="$(basename $GITHUB_REPOSITORY)"
         export GIT_BRANCH="$(basename $GITHUB_REF)"
         if [[ "${GITHUB_EVENT_NAME}" == "pull_request" ]]; then
@@ -84,9 +109,12 @@ jobs:
         CONFIG: ${{ matrix.CONFIG }}
         UPLOAD_PACKAGES: ${{ matrix.UPLOAD_PACKAGES }}
         CI: github_actions
-        BINSTAR_TOKEN: ${{ secrets.ANACONDA_API_TOKEN }}
+        BINSTAR_TOKEN: ${{ secrets.BINSTAR_TOKEN }}
       shell: bash
       run: |
+        export flow_run_id="github_$GITHUB_RUN_ID"
+        export remote_url="https://github.com/$GITHUB_REPOSITORY"
+        export sha="$GITHUB_SHA"
         export FEEDSTOCK_NAME="$(basename $GITHUB_REPOSITORY)"
         export GIT_BRANCH="$(basename $GITHUB_REF)"
         if [[ "${GITHUB_EVENT_NAME}" == "pull_request" ]]; then
@@ -102,37 +130,18 @@ jobs:
         miniforge-version: latest
         miniforge-variant: Mambaforge
       if: matrix.os == 'windows'
+
     - name: Build on windows
       shell: cmd
       run: |
-        call activate base
-        mamba.exe install -c conda-forge 'python=3.9' conda-build conda pip boa conda-forge-ci-setup=3
-        if errorlevel 1 exit 1
-        setup_conda_rc .\ ".\recipe" .\.ci_support\%CONFIG%.yaml
-        if errorlevel 1 exit 1
-        
-
-        if EXIST LICENSE.txt (
-          copy LICENSE.txt "recipe\\recipe-scripts-license.txt"
-        )
-        conda.exe mambabuild "recipe" -m .ci_support\%CONFIG%.yaml
-        if errorlevel 1 exit 1
-        set "FEEDSTOCK_NAME=%GITHUB_REPOSITORY:*/=%"
-        set "GIT_BRANCH=%GITHUB_REF:refs/heads/=%"
-        if /i "%GITHUB_EVENT_NAME%" == "pull_request" (
-          set "IS_PR_BUILD=True"
-        ) else (
-          set "IS_PR_BUILD=False"
-        )
-        if /i "%UPLOAD_PACKAGES%" == "true" (
-          if /i "%IS_PR_BUILD%" == "false" (
-            upload_package  .\ ".\recipe" .ci_support\%CONFIG%.yaml
-          )
-        )
+        set "flow_run_id=github_%GITHUB_RUN_ID%"
+        set "remote_url=https://github.com/%GITHUB_REPOSITORY%"
+        set "sha=%GITHUB_SHA%"
+        call ".scripts\run_win_build.bat"
       env:
         PYTHONUNBUFFERED: 1
         CONFIG: ${{ matrix.CONFIG }}
         CI: github_actions
         UPLOAD_PACKAGES: ${{ matrix.UPLOAD_PACKAGES }}
-        BINSTAR_TOKEN: ${{ secrets.ANACONDA_API_TOKEN }}
+        BINSTAR_TOKEN: ${{ secrets.BINSTAR_TOKEN }}
       if: matrix.os == 'windows'
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index c89ecb7..d49227b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 *.pyc
 
 build_artifacts
+miniforge3/
\ No newline at end of file
diff --git a/.scripts/build_steps.sh b/.scripts/build_steps.sh
index 1f03510..0d41f31 100755
--- a/.scripts/build_steps.sh
+++ b/.scripts/build_steps.sh
@@ -28,14 +28,15 @@ conda-build:
 pkgs_dirs:
   - ${FEEDSTOCK_ROOT}/build_artifacts/pkg_cache
   - /opt/conda/pkgs
+solver: libmamba
 
 CONDARC
+export CONDA_LIBMAMBA_SOLVER_NO_CHANNELS_FROM_INSTALLED=1
 
-
-mamba install --update-specs --yes --quiet --channel conda-forge \
-    conda-build pip boa conda-forge-ci-setup=3
-mamba update --update-specs --yes --quiet --channel conda-forge \
-    conda-build pip boa conda-forge-ci-setup=3
+mamba install --update-specs --yes --quiet --channel conda-forge --strict-channel-priority \
+    pip mamba conda-build boa conda-forge-ci-setup=4
+mamba update --update-specs --yes --quiet --channel conda-forge --strict-channel-priority \
+    pip mamba conda-build boa conda-forge-ci-setup=4
 
 # set up the condarc
 setup_conda_rc "${FEEDSTOCK_ROOT}" "${RECIPE_ROOT}" "${CONFIG_FILE}"
@@ -56,6 +57,12 @@ if [[ -f "${FEEDSTOCK_ROOT}/LICENSE.txt" ]]; then
   cp "${FEEDSTOCK_ROOT}/LICENSE.txt" "${RECIPE_ROOT}/recipe-scripts-license.txt"
 fi
 
+if [[ "${sha:-}" == "" ]]; then
+  pushd ${FEEDSTOCK_ROOT}
+  sha=$(git rev-parse HEAD)
+  popd
+fi
+
 if [[ "${BUILD_WITH_CONDA_DEBUG:-0}" == 1 ]]; then
     if [[ "x${BUILD_OUTPUT_ID:-}" != "x" ]]; then
         EXTRA_CB_OPTIONS="${EXTRA_CB_OPTIONS:-} --output-id ${BUILD_OUTPUT_ID}"
@@ -69,7 +76,8 @@ if [[ "${BUILD_WITH_CONDA_DEBUG:-0}" == 1 ]]; then
 else
     conda mambabuild "${RECIPE_ROOT}" -m "${CI_SUPPORT}/${CONFIG}.yaml" \
         --suppress-variables ${EXTRA_CB_OPTIONS:-} \
-        --clobber-file "${CI_SUPPORT}/clobber_${CONFIG}.yaml"
+        --clobber-file "${CI_SUPPORT}/clobber_${CONFIG}.yaml" \
+        --extra-meta flow_run_id="${flow_run_id:-}" remote_url="${remote_url:-}" sha="${sha:-}"
 
     ( startgroup "Uploading packages" ) 2> /dev/null
 
diff --git a/.scripts/logging_utils.sh b/.scripts/logging_utils.sh
index 57bc95c..aff009f 100644
--- a/.scripts/logging_utils.sh
+++ b/.scripts/logging_utils.sh
@@ -12,7 +12,7 @@ function startgroup {
             echo "##[group]$1";;
         travis )
             echo "$1"
-            echo -en 'travis_fold:start:'"${1// /}"'\\r';;
+            echo -en 'travis_fold:start:'"${1// /}"'\r';;
         github_actions )
             echo "::group::$1";;
         * )
@@ -28,7 +28,7 @@ function endgroup {
         azure )
             echo "##[endgroup]";;
         travis )
-            echo -en 'travis_fold:end:'"${1// /}"'\\r';;
+            echo -en 'travis_fold:end:'"${1// /}"'\r';;
         github_actions )
             echo "::endgroup::";;
     esac
diff --git a/.scripts/run_docker_build.sh b/.scripts/run_docker_build.sh
index c4079b7..db9a6e2 100755
--- a/.scripts/run_docker_build.sh
+++ b/.scripts/run_docker_build.sh
@@ -91,6 +91,9 @@ docker run ${DOCKER_RUN_ARGS} \
            -e CPU_COUNT \
            -e BUILD_WITH_CONDA_DEBUG \
            -e BUILD_OUTPUT_ID \
+           -e flow_run_id \
+           -e remote_url \
+           -e sha \
            -e BINSTAR_TOKEN \
            "${DOCKER_IMAGE}" \
            bash \
diff --git a/.scripts/run_osx_build.sh b/.scripts/run_osx_build.sh
index bad42e4..3431a67 100755
--- a/.scripts/run_osx_build.sh
+++ b/.scripts/run_osx_build.sh
@@ -22,11 +22,13 @@ bash $MINIFORGE_FILE -b -p ${MINIFORGE_HOME}
 
 source ${MINIFORGE_HOME}/etc/profile.d/conda.sh
 conda activate base
+export CONDA_SOLVER="libmamba"
+export CONDA_LIBMAMBA_SOLVER_NO_CHANNELS_FROM_INSTALLED=1
 
-mamba install --update-specs --quiet --yes --channel conda-forge \
-    conda-build pip boa conda-forge-ci-setup=3
-mamba update --update-specs --yes --quiet --channel conda-forge \
-    conda-build pip boa conda-forge-ci-setup=3
+mamba install --update-specs --quiet --yes --channel conda-forge --strict-channel-priority \
+    pip mamba conda-build boa conda-forge-ci-setup=4
+mamba update --update-specs --yes --quiet --channel conda-forge --strict-channel-priority \
+    pip mamba conda-build boa conda-forge-ci-setup=4
 
 
 
@@ -45,6 +47,10 @@ else
   echo -e "\n\nNot mangling homebrew as we are not running in CI"
 fi
 
+if [[ "${sha:-}" == "" ]]; then
+  sha=$(git rev-parse HEAD)
+fi
+
 echo -e "\n\nRunning the build setup script."
 source run_conda_forge_build_setup
 
@@ -55,11 +61,6 @@ source run_conda_forge_build_setup
 echo -e "\n\nMaking the build clobber file"
 make_build_number ./ ./recipe ./.ci_support/${CONFIG}.yaml
 
-if [[ "${HOST_PLATFORM}" != "${BUILD_PLATFORM}" ]]; then
-    EXTRA_CB_OPTIONS="${EXTRA_CB_OPTIONS:-} --no-test"
-fi
-
-
 if [[ -f LICENSE.txt ]]; then
   cp LICENSE.txt "recipe/recipe-scripts-license.txt"
 fi
@@ -75,9 +76,15 @@ if [[ "${BUILD_WITH_CONDA_DEBUG:-0}" == 1 ]]; then
     # Drop into an interactive shell
     /bin/bash
 else
+
+    if [[ "${HOST_PLATFORM}" != "${BUILD_PLATFORM}" ]]; then
+        EXTRA_CB_OPTIONS="${EXTRA_CB_OPTIONS:-} --no-test"
+    fi
+
     conda mambabuild ./recipe -m ./.ci_support/${CONFIG}.yaml \
         --suppress-variables ${EXTRA_CB_OPTIONS:-} \
-        --clobber-file ./.ci_support/clobber_${CONFIG}.yaml
+        --clobber-file ./.ci_support/clobber_${CONFIG}.yaml \
+        --extra-meta flow_run_id="$flow_run_id" remote_url="$remote_url" sha="$sha"
 
     ( startgroup "Uploading packages" ) 2> /dev/null
 
diff --git a/.scripts/run_win_build.bat b/.scripts/run_win_build.bat
new file mode 100755
index 0000000..e5d5a9b
--- /dev/null
+++ b/.scripts/run_win_build.bat
@@ -0,0 +1,121 @@
+:: PLEASE NOTE: This script has been automatically generated by conda-smithy. Any changes here
+:: will be lost next time ``conda smithy rerender`` is run. If you would like to make permanent
+:: changes to this script, consider a proposal to conda-smithy so that other feedstocks can also
+:: benefit from the improvement.
+
+:: Note: we assume a Miniforge installation is available
+
+:: INPUTS (required environment variables)
+:: CONFIG: name of the .ci_support/*.yaml file for this job
+:: CI: azure, github_actions, or unset
+:: UPLOAD_PACKAGES: true or false
+:: UPLOAD_ON_BRANCH: true or false
+
+setlocal enableextensions enabledelayedexpansion
+
+call :start_group "Configuring conda"
+
+:: Activate the base conda environment
+call activate base
+:: Configure the solver
+set "CONDA_SOLVER=libmamba"
+if !errorlevel! neq 0 exit /b !errorlevel!
+set "CONDA_LIBMAMBA_SOLVER_NO_CHANNELS_FROM_INSTALLED=1"
+
+:: Provision the necessary dependencies to build the recipe later
+echo Installing dependencies
+mamba.exe install "python=3.10" pip mamba conda-build boa conda-forge-ci-setup=4 -c conda-forge --strict-channel-priority --yes
+if !errorlevel! neq 0 exit /b !errorlevel!
+
+:: Set basic configuration
+echo Setting up configuration
+setup_conda_rc .\ ".\recipe" .\.ci_support\%CONFIG%.yaml
+if !errorlevel! neq 0 exit /b !errorlevel!
+echo Running build setup
+CALL run_conda_forge_build_setup
+
+
+if !errorlevel! neq 0 exit /b !errorlevel!
+
+if EXIST LICENSE.txt (
+    echo Copying feedstock license
+    copy LICENSE.txt "recipe\\recipe-scripts-license.txt"
+)
+if NOT [%HOST_PLATFORM%] == [%BUILD_PLATFORM%] (
+    if [%CROSSCOMPILING_EMULATOR%] == [] (
+        set "EXTRA_CB_OPTIONS=%EXTRA_CB_OPTIONS% --no-test"
+    )
+)
+
+if NOT [%flow_run_id%] == [] (
+    set "EXTRA_CB_OPTIONS=%EXTRA_CB_OPTIONS% --extra-meta flow_run_id=%flow_run_id% remote_url=%remote_url% sha=%sha%"
+)
+
+call :end_group
+
+:: Build the recipe
+echo Building recipe
+conda.exe mambabuild "recipe" -m .ci_support\%CONFIG%.yaml --suppress-variables %EXTRA_CB_OPTIONS%
+if !errorlevel! neq 0 exit /b !errorlevel!
+
+:: Prepare some environment variables for the upload step
+if /i "%CI%" == "github_actions" (
+    set "FEEDSTOCK_NAME=%GITHUB_REPOSITORY:*/=%"
+    set "GIT_BRANCH=%GITHUB_REF:refs/heads/=%"
+    if /i "%GITHUB_EVENT_NAME%" == "pull_request" (
+        set "IS_PR_BUILD=True"
+    ) else (
+        set "IS_PR_BUILD=False"
+    )
+    set "TEMP=%RUNNER_TEMP%"
+)
+if /i "%CI%" == "azure" (
+    set "FEEDSTOCK_NAME=%BUILD_REPOSITORY_NAME:*/=%"
+    set "GIT_BRANCH=%BUILD_SOURCEBRANCHNAME%"
+    if /i "%BUILD_REASON%" == "PullRequest" (
+        set "IS_PR_BUILD=True"
+    ) else (
+        set "IS_PR_BUILD=False"
+    )
+    set "TEMP=%UPLOAD_TEMP%"
+)
+
+:: Validate
+
+if /i "%UPLOAD_PACKAGES%" == "true" (
+    if /i "%IS_PR_BUILD%" == "false" (
+        call :start_group "Uploading packages"
+        if not exist "%TEMP%\" md "%TEMP%"
+        set "TMP=%TEMP%"
+        upload_package  .\ ".\recipe" .ci_support\%CONFIG%.yaml
+        if !errorlevel! neq 0 exit /b !errorlevel!
+        call :end_group
+    )
+)
+
+exit
+
+:: Logging subroutines
+
+:start_group
+if /i "%CI%" == "github_actions" (
+    echo ::group::%~1
+    exit /b
+)
+if /i "%CI%" == "azure" (
+    echo ##[group]%~1
+    exit /b
+)
+echo %~1
+exit /b
+
+:end_group
+if /i "%CI%" == "github_actions" (
+    echo ::endgroup::
+    exit /b
+)
+if /i "%CI%" == "azure" (
+    echo ##[endgroup]
+    exit /b
+)
+exit /b
\ No newline at end of file
diff --git a/conda-forge.yml b/conda-forge.yml
index 0d573fe..44f6c83 100644
--- a/conda-forge.yml
+++ b/conda-forge.yml
@@ -1,17 +1,6 @@
 github:                         
   user_or_org: funkelab
 
-channels:
-  # sources selects the channels to pull packages from, in order.
-  sources:
-    - gurobi
-    - conda-forge
-    - defaults
-  # targets is a list of 2-lists, where the first element is the
-  # channel to push to and the second element is the label on that channel
-  targets:
-    - [funkelab, main]
-
 # https://conda-forge.org/docs/maintainer/conda_forge_yml.html#provider
 provider:
   linux_64: github_actions
diff --git a/recipe/conda_build_config.yaml b/recipe/conda_build_config.yaml
index f57249d..1506f00 100644
--- a/recipe/conda_build_config.yaml
+++ b/recipe/conda_build_config.yaml
@@ -2,6 +2,14 @@ python:
   - 3.9
   - 3.10
   - 3.11
+python_impl:
+  - cpython
+  - cpython
+  - cpython
+numpy:
+  - 1.22
+  - 1.22
+  - 1.22
 channel_targets:
   - funkelab main
 channel_sources:
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 4840054..beea981 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -10,7 +10,7 @@ source:
   sha256: 6bed753418a60d81894169a9b7b4124e1d2f619d3bb20573fc87de1495d6932c
 
 build:
-  number: 0
+  number: 1
   script: "{{ PYTHON }} -m pip install . --no-deps -vv"
 
 requirements:
@@ -18,17 +18,17 @@ requirements:
     - {{ compiler("cxx") }}
     - cross-python_{{ target_platform }}    # [build_platform != target_platform]
     - python                                # [build_platform != target_platform]
-    - cython                                # [build_platform != target_platform]
+    - cython<3.0                            # [build_platform != target_platform]
   host:
     - python {{python}}
     - pip
-    - cython
-    - scip
-    - gurobi
+    - cython<3.0
+    - scip=8.1.0
+    - gurobi=10.0
   run:
     - python {{python}}
-    - scip
-    - gurobi
+    - scip=8.1.0
+    - gurobi=10.0
 
 test: 
   imports: