diff --git a/.ci_support/environment-mpich.yml b/.ci_support/environment-mpich.yml
index 8c6cb282..f587fb4f 100644
--- a/.ci_support/environment-mpich.yml
+++ b/.ci_support/environment-mpich.yml
@@ -4,7 +4,7 @@ dependencies:
 - coverage
 - lammps =2024.06.27=*_mpi_mpich_*
 - mpich =4.2.2
-- numpy =1.26.4
+- numpy =2.1.0
 - mpi4py =4.0.0
 - executorlib =0.0.2
 - ase =3.23.0
diff --git a/.ci_support/environment-openmpi.yml b/.ci_support/environment-openmpi.yml
index 1925c12f..bd14fa26 100644
--- a/.ci_support/environment-openmpi.yml
+++ b/.ci_support/environment-openmpi.yml
@@ -4,7 +4,7 @@ dependencies:
 - coverage
 - lammps =2024.06.27=*_mpi_openmpi_*
 - openmpi =5.0.5
-- numpy =1.26.4
+- numpy =2.1.0
 - mpi4py =4.0.0
 - executorlib =0.0.2
 - ase =3.23.0
diff --git a/binder/environment.yml b/binder/environment.yml
index c5896b53..cbed85e7 100644
--- a/binder/environment.yml
+++ b/binder/environment.yml
@@ -2,7 +2,7 @@ channels:
 - conda-forge
 dependencies:
 - openmpi
-- numpy =1.26.4
+- numpy =2.1.0
 - lammps =2024.06.27
 - mpi4py =4.0.0
 - executorlib =0.0.2
diff --git a/pyproject.toml b/pyproject.toml
index cc33f41b..b36d251e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ classifiers = [
 dependencies = [
     "mpi4py==4.0.0",
     "executorlib==0.0.2",
-    "numpy==1.26.4",
+    "numpy==2.1.0",
 ]
 dynamic = ["version"]