diff --git a/README.md b/README.md
index 37cf114..49cdb89 100644
--- a/README.md
+++ b/README.md
@@ -11,8 +11,6 @@
 [![Build](https://github.com/nismod/snail/actions/workflows/build.yml/badge.svg)](https://github.com/nismod/snail/actions/workflows/build.yml)
 [![License](https://img.shields.io/pypi/l/nismod-snail.svg)](https://opensource.org/licenses/MIT)
 
-> This code is under early development
-
 # 🤔 What is this?
 
 This is a Python package to help with analysis of the potential impacts of
@@ -108,7 +106,7 @@ Change directory into the root of the project:
 
 To create and activate a conda environment with snail's dependencies installed:
 
-    conda env create -f .environment.yml
+    conda env create -f environment.yml
     conda activate snail-dev
 
 Run this to install the source code as a package:
diff --git a/.environment.yml b/environment.yml
similarity index 68%
rename from .environment.yml
rename to environment.yml
index d582a4f..c557013 100644
--- a/.environment.yml
+++ b/environment.yml
@@ -12,9 +12,8 @@ dependencies:
   - matplotlib
   - nbstripout
   - networkx
-  - numpy <2.0.0
+  - numpy
   - openpyxl
-  - pandera
   - pip
   - pyarrow
   - pyogrio
@@ -25,9 +24,10 @@ dependencies:
   - shapely
   - scipy
   - pip:
-    - hilbertcurve
-    - irv_autopkg_client
-    - python-igraph
-    - snkit
-    - tqdm
-    - -e .
+      - hilbertcurve
+      - irv_autopkg_client
+      - pandera>=0.20.0
+      - python-igraph
+      - snkit
+      - tqdm
+      - -e .
diff --git a/pyproject.toml b/pyproject.toml
index aba7667..128fe18 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,7 +25,7 @@ requires-python = ">=3.8"
 dependencies = [
     "geopandas",
     "matplotlib",
-    "numpy<2.0.0",
+    "numpy",
     "openpyxl",
     "pandera",
     "pyarrow",
diff --git a/tests/test_damages.py b/tests/test_damages.py
index 8a696a0..0ecb1cc 100644
--- a/tests/test_damages.py
+++ b/tests/test_damages.py
@@ -1,4 +1,5 @@
 """Test damage assessment"""
+
 import os
 
 import numpy
@@ -115,7 +116,7 @@ def test_linear_curve_interpolation(curve):
 def test_linear_curve_out_of_bounds(curve):
     # sense-check out-of-bounds
     intensities = numpy.array(
-        [numpy.NINF, -999, numpy.NZERO, 0, 30, 999, numpy.inf, numpy.nan]
+        [-numpy.inf, -999, -0.0, 0, 30, 999, numpy.inf, numpy.nan]
     )
     expected = numpy.array([0, 0, 0, 0, 1, 1, 1, numpy.nan])
     actual = curve.damage_fraction(intensities)