diff --git a/CHANGELOG.md b/CHANGELOG.md
index 69140a11..dfb186f7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -88,6 +88,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   [\#52](https://github.com/mllam/neural-lam/pull/52)
   @joeloskarsson
 
+- Cap numpy version to < 2.0.0
+  [\#68](https://github.com/mllam/neural-lam/pull/68)
+  @joeloskarsson
+
 ## [v0.1.0](https://github.com/joeloskarsson/neural-lam/releases/tag/v0.1.0)
 
 First tagged release of `neural-lam`, matching Oskarsson et al 2023 publication
diff --git a/requirements.txt b/requirements.txt
index 9309eea4..6bcf304d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 # for all
-numpy>=1.24.2
+numpy>=1.24.2, <2.0.0
 wandb>=0.13.10
 matplotlib>=3.7.0
 scipy>=1.10.0