diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 10855e6042..9e892cf9d2 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -6,6 +6,7 @@ on:
   push:
     branches:
       - main
+      - python3.14
   schedule:
     - cron: "0 0 * * *"
 
@@ -21,7 +22,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.12", "3.13"]
+        python-version: ["3.12", "3.13", "3.14"]
     name: Linux Python ${{ matrix.python-version }}
     steps:
       - uses: actions/checkout@v6
@@ -67,7 +68,7 @@ jobs:
     if: github.repository == 'ESMValGroup/ESMValTool'  # avoid GAs in forks
     strategy:
       matrix:
-        python-version: ["3.12", "3.13"]
+        python-version: ["3.12", "3.13", "3.14"]
       fail-fast: false
     name: OSX Python ${{ matrix.python-version }}
     steps:
diff --git a/environment.yml b/environment.yml
index beb9aec3d9..7be617d69a 100644
--- a/environment.yml
+++ b/environment.yml
@@ -50,7 +50,7 @@ dependencies:
   - prov
   - pyproj >=2.1
   - pys2index # only from conda-forge
-  - python >=3.12,<3.14
+  - python >=3.12,<3.15
   - python-cdo
   - python-dateutil
   - pyyaml
diff --git a/environment_osx.yml b/environment_osx.yml
index d8f3adf8e5..9301e9b815 100644
--- a/environment_osx.yml
+++ b/environment_osx.yml
@@ -50,7 +50,7 @@ dependencies:
   - prov
   - pyproj >=2.1
   - pys2index >=0.1.5 # only from conda-forge; https://github.com/ESMValGroup/ESMValTool/pull/3792
-  - python >=3.12,<3.14
+  - python >=3.12,<3.15
   - python-cdo
   - python-dateutil
   - pyyaml