diff --git a/.ci_support/environment-integration.yml b/.ci_support/environment-integration.yml
index 47ef5803..b2c2e52d 100644
--- a/.ci_support/environment-integration.yml
+++ b/.ci_support/environment-integration.yml
@@ -4,10 +4,10 @@ dependencies:
 - h5py =3.16.0
 - jupyter
 - mpi4py =4.1.2
-- numpy =2.3.5
+- numpy =2.5.4
 - openmpi
 - papermill
-- atomistics =0.3.6
+- atomistics =0.4.0
 - cloudpickle =3.1.2
 - flux-core =0.87.0
 - flux-pmix =0.7.1
diff --git a/.ci_support/environment-mini.yml b/.ci_support/environment-mini.yml
index 25d9f809..6ad94df3 100644
--- a/.ci_support/environment-mini.yml
+++ b/.ci_support/environment-mini.yml
@@ -2,7 +2,7 @@ channels:
 - conda-forge
 dependencies:
 - python
-- numpy =2.4.2
+- numpy =2.5.4
 - cloudpickle =3.1.0
 - hatchling =1.32.4
 - hatch-vcs =0.5.0
diff --git a/.ci_support/environment-mpich.yml b/.ci_support/environment-mpich.yml
index d01b170e..a26db5a4 100644
--- a/.ci_support/environment-mpich.yml
+++ b/.ci_support/environment-mpich.yml
@@ -2,7 +2,7 @@ channels:
 - conda-forge
 dependencies:
 - python
-- numpy =2.4.2
+- numpy =2.5.4
 - mpich
 - cloudpickle =3.1.2
 - h5py =3.16.0
diff --git a/.ci_support/environment-openmpi.yml b/.ci_support/environment-openmpi.yml
index 68ca3419..70df524f 100644
--- a/.ci_support/environment-openmpi.yml
+++ b/.ci_support/environment-openmpi.yml
@@ -2,7 +2,7 @@ channels:
 - conda-forge
 dependencies:
 - python
-- numpy =2.4.2
+- numpy =2.5.4
 - openmpi
 - cloudpickle =3.1.2
 - h5py =3.16.0
diff --git a/.ci_support/environment-win.yml b/.ci_support/environment-win.yml
index b785c3a5..4e041596 100644
--- a/.ci_support/environment-win.yml
+++ b/.ci_support/environment-win.yml
@@ -2,7 +2,7 @@ channels:
 - conda-forge
 dependencies:
 - python
-- numpy =2.4.2
+- numpy =2.5.4
 - msmpi
 - cloudpickle =3.1.2
 - h5py =3.16.0
diff --git a/.github/workflows/pipeline.yml b/.github/workflows/pipeline.yml
index 4c8687a3..b5da3bf9 100644
--- a/.github/workflows/pipeline.yml
+++ b/.github/workflows/pipeline.yml
@@ -335,9 +335,6 @@ jobs:
         - operating-system: ubuntu-latest
           python-version: '3.12'
 
-        - operating-system: ubuntu-latest
-          python-version: '3.11'
-
     steps:
     - uses: actions/checkout@v7
     - uses: conda-incubator/setup-miniconda@v4
@@ -379,9 +376,6 @@ jobs:
         - operating-system: ubuntu-latest
           python-version: '3.12'
 
-        - operating-system: ubuntu-latest
-          python-version: '3.11'
-
     steps:
     - uses: actions/checkout@v7
     - uses: conda-incubator/setup-miniconda@v4