diff --git a/.github/workflows/standard.yml b/.github/workflows/standard.yml
index 82e73c7a..af25c9c4 100644
--- a/.github/workflows/standard.yml
+++ b/.github/workflows/standard.yml
@@ -20,7 +20,8 @@ jobs:
       # Extras to be installed only for conda-based testing:
       conda-testing-extras: "ipython=8.4.0"
       # Extras to be installed only for pip-based testing:
-      pip-testing-extras: "ipython==8.4.0"
+      # Set numpy<2 for now, remove when xraylib updates
+      pip-testing-extras: "ipython==8.4.0 numpy<2"
       # System packages to be installed only for conda-based testing:
       conda-system-packages: ""
       # System packages to be installed only for pip-based testing:
diff --git a/docs-requirements.txt b/docs-requirements.txt
index 603abf3f..7f73d832 100644
--- a/docs-requirements.txt
+++ b/docs-requirements.txt
@@ -4,3 +4,5 @@ sphinx
 sphinx_rtd_theme
 sphinxcontrib-jquery
 pypandoc
+# Temporary pin, xraylib 4.1.3 (pcdscalc) incompatible
+numpy <2
diff --git a/docs/source/upcoming_release_notes/386-maint_numpy2_pypi.rst b/docs/source/upcoming_release_notes/386-maint_numpy2_pypi.rst
new file mode 100644
index 00000000..bdfb4774
--- /dev/null
+++ b/docs/source/upcoming_release_notes/386-maint_numpy2_pypi.rst
@@ -0,0 +1,23 @@
+386 maint_numpy2_pypi
+#################
+
+API Changes
+-----------
+- N/A
+
+Features
+--------
+- N/A
+
+Bugfixes
+--------
+- N/A
+
+Maintenance
+-----------
+- Fix an issue where an upstream numpy 2 incompatibilty was
+  breaking the pypi builds.
+
+Contributors
+------------
+- zllentz