diff --git a/.github/workflows/gh-ci.yaml b/.github/workflows/gh-ci.yaml
index 85d811d..29a6abf 100644
--- a/.github/workflows/gh-ci.yaml
+++ b/.github/workflows/gh-ci.yaml
@@ -16,7 +16,7 @@ concurrency:
 
 defaults:
   run:
-    shell: bash -l {0}
+    shell: bash -leo pipefail {0}
 
 jobs:
   unittests:
@@ -26,37 +26,37 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, ]
-        python-version: ["3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
         include:
           - os: windows-latest
-            python-version: "3.12"
+            python-version: "3.13"
           - os: macos-latest
-            python-version: "3.12"
+            python-version: "3.13"
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
-    - name: setup_miniconda
-      uses: conda-incubator/setup-miniconda@v2
+    - name: setup_micromamba
+      uses: mamba-org/setup-micromamba@v2
       with:
-        python-version: ${{ matrix.python-version }}
-        auto-update-conda: true
-        channel-priority: flexible
-        channels: conda-forge
-        add-pip-as-python-dependency: true
-        use-mamba: true
-        miniforge-variant: Mambaforge
+        environment-name: mda
+        create-args: >-
+          python=${{ matrix.python-version }}
+          pip
+        condarc: |
+          channels:
+            - conda-forge
 
     - name: install package deps
       run: |
-        mamba install numpy scipy mrcfile pytest pytest-cov codecov
+        micromamba install numpy scipy mrcfile pytest pytest-cov codecov
 
     - name: check install
       run: |
         which python
         which pip
-        conda info
-        conda list
+        micromamba info
+        micromamba list
 
     - name: install package
       run: |
@@ -67,9 +67,10 @@ jobs:
         pytest -v --cov=gridData --cov-report=xml --color=yes ./gridData/tests
 
     - name: codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
       if: github.event_name != 'schedule'
       with:
         file: coverage.xml
         fail_ci_if_error: True
         verbose: True
+        token: ${{ secrets.CODECOV_TOKEN }}
diff --git a/pyproject.toml b/pyproject.toml
index 363e3e4..099682f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,6 +29,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Topic :: Scientific/Engineering",
     "Topic :: Software Development :: Libraries :: Python Modules",
 ]