diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 05f788ae..837128aa 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -129,9 +129,12 @@ jobs:
           test "$MNE_INSTALLER_NAME" != ""
           echo "Artifact ID: ${MNE_INSTALLER_ARTIFACT_ID}"
           test "$MNE_INSTALLER_ARTIFACT_ID" != ""
+          echo "Prefix:      ${MNE_INSTALL_PREFIX}"
+          test "$MNE_INSTALL_PREFIX" != ""
           echo "MNE_INSTALLER_VERSION=${MNE_INSTALLER_VERSION}" >> $GITHUB_ENV
           echo "MNE_INSTALLER_NAME=${MNE_INSTALLER_NAME}" >> $GITHUB_ENV
           echo "MNE_INSTALLER_ARTIFACT_ID=${MNE_INSTALLER_ARTIFACT_ID}" >> $GITHUB_ENV
+          echo "MNE_INSTALL_PREFIX=${MNE_INSTALL_PREFIX}" >> $GITHUB_ENV
           echo "RECIPE_DIR=${RECIPE_DIR}" >> $GITHUB_ENV
           echo "CONDA_SOLVER=libmamba" >> $GITHUB_ENV
           if [[ "$MNE_CROSSCOMPILE_ARCH" == "arm64" ]]; then
@@ -153,15 +156,21 @@ jobs:
           ./tools/run_constructor.sh
 
       - name: Check installer signature (macOS)
-        if: ${{ runner.os == 'macOS' && github.event_name != 'pull_request' }}
+        if: ${{ runner.os == 'macOS' }}
         run: |
           # Installer package
           set -eo pipefail
-          pkgutil --check-signature ${MNE_INSTALLER_NAME}
+          if [[ "${{ github.event_name }}" != "pull_request" ]]; then
+            pkgutil --check-signature ${MNE_INSTALLER_NAME} || exit 1
+          fi
           # Now extract the package and check that the conda.exe binary is
           # properly signed as well
           pkgutil --expand-full ${MNE_INSTALLER_NAME} ./mne-extracted
-          BINARY="./mne-extracted/main.pkg/Payload${MNE_INSTALL_PREFIX}/conda.exe"
+          DIR="./mne-extracted/prepare_installation.pkg/Payload/.mne-python"
+          echo "Checking ${DIR} exists"
+          test -d "$DIR"
+          ls -al "$DIR"
+          BINARY="${DIR}/conda.exe"
           echo "Checking ${BINARY} exists"
           test -e "${BINARY}"
           echo "Checking ${BINARY} is signed"
@@ -304,7 +313,8 @@ jobs:
           echo "MNE_INSTALLER_VERSION=${MNE_INSTALLER_VERSION}"
           echo "MNE_ACTIVATE=${MNE_ACTIVATE}" >> $GITHUB_ENV
           echo "MNE_ACTIVATE=${MNE_ACTIVATE}"
-          echo "MNE_INSTALL_PREFIX=$MNE_INSTALL_PREFIX" >> $GITHUB_ENV
+          echo "MNE_INSTALL_PREFIX=${MNE_INSTALL_PREFIX}" >> $GITHUB_ENV
+          echo "MNE_INSTALL_PREFIX=${MNE_INSTALL_PREFIX}"
           echo "NSIS_SCRIPTS_RAISE_ERRORS=1" >> $GITHUB_ENV
 
       - name: Download appropriate installer
diff --git a/recipes/mne-python_1.5/construct.yaml b/recipes/mne-python_1.5/construct.yaml
index e45d6dcd..4385ee19 100644
--- a/recipes/mne-python_1.5/construct.yaml
+++ b/recipes/mne-python_1.5/construct.yaml
@@ -1,4 +1,4 @@
-version: 1.5.0_1
+version: 1.5.1_0
 name: MNE-Python
 company: MNE-Python Developers
 # When the version above changes to a new major/minor, it needs to be updated
@@ -18,11 +18,11 @@ conclusion_file: ../../assets/conclusion.rtf   # [not win]
 initialize_by_default: false
 register_python_default: false
 
-default_prefix: ${HOME}/mne-python/1.5.0_1                          # [linux]
-default_prefix: "%USERPROFILE%\\mne-python\\1.5.0_1"                # [win]
-default_prefix_domain_user: "%LOCALAPPDATA%\\mne-python\\1.5.0_1"   # [win]
-default_prefix_all_users: "%ALLUSERSPROFILE%\\mne-python\\1.5.0_1"  # [win]
-default_location_pkg: "Applications/MNE-Python/1.5.0_1"             # [osx]
+default_prefix: ${HOME}/mne-python/1.5.1_0                          # [linux]
+default_prefix: "%USERPROFILE%\\mne-python\\1.5.1_0"                # [win]
+default_prefix_domain_user: "%LOCALAPPDATA%\\mne-python\\1.5.1_0"   # [win]
+default_prefix_all_users: "%ALLUSERSPROFILE%\\mne-python\\1.5.1_0"  # [win]
+default_location_pkg: "Applications/MNE-Python/1.5.1_0"             # [osx]
 pkg_name: ".mne-python"                                             # [osx]
 progress_notifications: true                                        # [osx]
 install_path_exists_error_text: |
@@ -30,10 +30,10 @@ install_path_exists_error_text: |
 
 uninstall_name: MNE-Python ${VERSION} (Python ${PYVERSION})
 
-installer_filename: MNE-Python-1.5.0_1-macOS_Intel.pkg  # [osx and not arm64]
-installer_filename: MNE-Python-1.5.0_1-macOS_M1.pkg     # [osx and arm64]
-installer_filename: MNE-Python-1.5.0_1-Windows.exe      # [win]
-installer_filename: MNE-Python-1.5.0_1-Linux.sh         # [linux]
+installer_filename: MNE-Python-1.5.1_0-macOS_Intel.pkg  # [osx and not arm64]
+installer_filename: MNE-Python-1.5.1_0-macOS_M1.pkg     # [osx and arm64]
+installer_filename: MNE-Python-1.5.1_0-Windows.exe      # [win]
+installer_filename: MNE-Python-1.5.1_0-Linux.sh         # [linux]
 
 post_install: ../../assets/post_install_macOS.sh        # [osx]
 post_install: ../../assets/post_install_linux.sh        # [linux]
@@ -71,8 +71,8 @@ specs:
   # - mne-installer-menus =1.4dev0=*_20230503
   # - mne-bids =0.11dev0=*_20221007
   # TODO: ⛔️ ⛔️ ⛔️ DEV BUILDS STOP: CHANGE BEFORE RELEASE! ⛔️ ⛔️ ⛔️
-  - mne =1.5.0=*_0
-  - mne-installer-menus =1.5.0=*_0
+  - mne =1.5.1=*_0
+  - mne-installer-menus =1.5.1=*_0
   # For testing purposes with build_local.sh, you can comment out all deps
   # below for speed, and change mne to mne-base above
   - mne-bids =0.13.0
@@ -134,7 +134,7 @@ specs:
   # various biological signals (ECG, EOG, EMG, …)
   - neurokit2 =0.2.5
   # GitHub client, https://cli.github.com
-  - gh =2.33.0
+  - gh =2.34.0
   # NeuroSpin needs the following
   - questionary =2.0.0
   - pqdm =0.2.0
@@ -167,4 +167,4 @@ condarc:
     - conda-forge
   channel_priority: strict
   allow_other_channels: false
-  env_prompt: "(mne-1.5.0_1) "
+  env_prompt: "(mne-1.5.1_0) "
diff --git a/tests/test_outdated.py b/tests/test_outdated.py
index 71a0bc85..0d691381 100644
--- a/tests/test_outdated.py
+++ b/tests/test_outdated.py
@@ -14,7 +14,7 @@
 
 construct_yaml = yaml.safe_load(construct_yaml_path.read_text(encoding="utf-8"))
 specs = construct_yaml["specs"]
-LJUST = 20
+LJUST = 25
 
 print(f"Analyzing spec file: {construct_yaml_path}\n")