diff --git a/pyproject.toml b/pyproject.toml
index 6f8c358a..f4efd4da 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,3 @@
 [build-system]
 # PEP 518 - minimum build system requirements
-requires = ["setuptools>=61,<72", "wheel", "Cython>=0.29", "packaging", "pip>=19.0.0", "numpy<2", "mpi4py", "pkgconfig"]
\ No newline at end of file
+requires = ["setuptools>=61,<72", "wheel", "Cython>=0.29", "packaging", "pip>=19.0.0", "numpy", "mpi4py", "pkgconfig"]
diff --git a/setup.py b/setup.py
index 2adf7a44..c4c50541 100644
--- a/setup.py
+++ b/setup.py
@@ -137,7 +137,7 @@ def initialize_options(self):
     author_email='info@precice.org',
     license='LGPL-3.0',
     python_requires='>=3',
-    install_requires=['numpy<2', 'mpi4py', 'Cython'],
+    install_requires=['numpy', 'mpi4py', 'Cython'],
     # mpi4py is only needed, if preCICE was compiled with MPI
     # see https://github.com/precice/python-bindings/issues/8
     packages=['precice'],
diff --git a/spack/repo/packages/py-pyprecice/package.py b/spack/repo/packages/py-pyprecice/package.py
index 7ee79d6e..f6c31915 100644
--- a/spack/repo/packages/py-pyprecice/package.py
+++ b/spack/repo/packages/py-pyprecice/package.py
@@ -59,7 +59,8 @@ class PyPyprecice(PythonPackage):
 
     depends_on("python@3:", type=("build", "link", "run"))
     depends_on("py-setuptools@61:71", type="build")
-    depends_on("py-numpy@:1", type=("build", "link", "run"))
+    depends_on("py-numpy", type=("build", "link", "run"), when="@3.1.1:")
+    depends_on("py-numpy@:1", type=("build", "link", "run"), when="@:3.1.1")
     depends_on("py-mpi4py", type=("build", "run"))
     depends_on("py-cython@0.29:", type="build")
     depends_on("py-packaging", type="build")