diff --git a/docs/src/whatsnew/latest.rst b/docs/src/whatsnew/latest.rst
index f73d6b0090..d7e9a40648 100644
--- a/docs/src/whatsnew/latest.rst
+++ b/docs/src/whatsnew/latest.rst
@@ -113,6 +113,9 @@ This document explains the changes made to Iris for this release
 #. `@bjlittle`_ enforced the minimum pin of ``numpy>1.21`` in accordance with the `NEP29 Drop Schedule`_.
    (:pull:`5525`)
 
+#. `@bjlittle`_ enforced the minimum pin of ``numpy>1.22`` in accordance with the `NEP29 Drop Schedule`_.
+   (:pull:`5668`)
+
 
 📚 Documentation
 ================
diff --git a/requirements/py310.yml b/requirements/py310.yml
index ced05dd987..f0f8f97eea 100644
--- a/requirements/py310.yml
+++ b/requirements/py310.yml
@@ -18,7 +18,7 @@ dependencies:
   - libnetcdf !=4.9.1
   - matplotlib-base >=3.5
   - netcdf4
-  - numpy >1.21, !=1.24.3
+  - numpy >=1.23, !=1.24.3
   - python-xxhash
   - pyproj
   - scipy
diff --git a/requirements/py311.yml b/requirements/py311.yml
index 5f2b23850e..b40e5f75e1 100644
--- a/requirements/py311.yml
+++ b/requirements/py311.yml
@@ -18,7 +18,7 @@ dependencies:
   - libnetcdf !=4.9.1
   - matplotlib-base >=3.5
   - netcdf4
-  - numpy >1.21, !=1.24.3
+  - numpy >=1.23, !=1.24.3
   - python-xxhash
   - pyproj
   - scipy
diff --git a/requirements/py39.yml b/requirements/py39.yml
index a5b32748e3..884c568575 100644
--- a/requirements/py39.yml
+++ b/requirements/py39.yml
@@ -18,7 +18,7 @@ dependencies:
   - libnetcdf !=4.9.1
   - matplotlib-base >=3.5
   - netcdf4
-  - numpy >1.21, !=1.24.3
+  - numpy >=1.23, !=1.24.3
   - python-xxhash
   - pyproj
   - scipy
diff --git a/requirements/pypi-core.txt b/requirements/pypi-core.txt
index e286bb97bc..e6dc005883 100644
--- a/requirements/pypi-core.txt
+++ b/requirements/pypi-core.txt
@@ -5,7 +5,7 @@ dask[array]>=2022.9.0
 # libnetcdf!=4.9.1 (not available on PyPI)
 matplotlib>=3.5
 netcdf4
-numpy>1.21,!=1.24.3
+numpy>=1.23,!=1.24.3
 pyproj
 scipy
 shapely!=1.8.3