diff --git a/.github/workflows/book.yml b/.github/workflows/book.yml
index 5539c77..e578d99 100644
--- a/.github/workflows/book.yml
+++ b/.github/workflows/book.yml
@@ -17,7 +17,7 @@ jobs:
     - uses: conda-incubator/setup-miniconda@v2
       with:
         auto-update-conda: true
-        python-version: "3.11"
+        python-version: "3.12"
         environment-file: .github/ci_support/environment.yml
         auto-activate-base: false
     - name: Install Jupyterbook
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 4fa7d9d..afaa22e 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -16,7 +16,7 @@ jobs:
     - uses: conda-incubator/setup-miniconda@v2
       with:
         auto-update-conda: true
-        python-version: "3.11"
+        python-version: "3.12"
         environment-file: .github/ci_support/environment.yml
         auto-activate-base: false
     - name: Install Jupyterbook
diff --git a/.github/workflows/notebooks.yml b/.github/workflows/notebooks.yml
index 1761388..d5e7981 100644
--- a/.github/workflows/notebooks.yml
+++ b/.github/workflows/notebooks.yml
@@ -16,7 +16,7 @@ jobs:
     - uses: conda-incubator/setup-miniconda@v2
       with:
         auto-update-conda: true
-        python-version: "3.11"
+        python-version: "3.12"
         environment-file: environment.yml
         auto-activate-base: false
     - name: Tests
diff --git a/environment.yml b/environment.yml
index 74c32b4..6f59af8 100644
--- a/environment.yml
+++ b/environment.yml
@@ -3,6 +3,6 @@ channels:
 dependencies:
 - python
 - pyiron_atomistics =0.5.4
-- lammps =2023.11.21=*openmpi*
+- lammps =2024.02.07=*openmpi*
 - nglview =3.1.2
 - pyiron-data =0.0.29