diff --git a/.azure-pipelines/azure-pipelines.yml b/.azure-pipelines/azure-pipelines.yml
index c9708934..8d2ee254 100644
--- a/.azure-pipelines/azure-pipelines.yml
+++ b/.azure-pipelines/azure-pipelines.yml
@@ -15,11 +15,11 @@ stages:
     pool:
       vmImage: ubuntu-20.04
     steps:
-      # Use Python >=3.8 for syntax validation
+      # Use Python >=3.10 for syntax validation
     - task: UsePythonVersion@0
       displayName: Set up python
       inputs:
-        versionSpec: 3.8
+        versionSpec: 3.10
 
       # Run syntax validation on a shallow clone
     - bash: |
@@ -81,14 +81,10 @@ stages:
       vmImage: ubuntu-20.04
     strategy:
       matrix:
-        python38:
-          PYTHON_VERSION: 3.8
-        python39:
-          PYTHON_VERSION: 3.9
         python310:
           PYTHON_VERSION: 3.10
         python311:
-          PYTHON_VERSION: 3.11
+          PYTHON_VERSION: 3.11.7
     steps:
     - template: ci.yml
 
diff --git a/requirements.txt b/requirements.txt
index a9d423f9..b496f59c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,9 @@
-dask==2022.11.1
-distributed==2022.11.1
+dask==2023.3.2
+distributed==2023.3.2
 h5py==3.8.0
 hdf5plugin==4.0.1
-nexgen==0.7.2
-numpy==1.23.5
-pandas==1.5.2
-Pint==0.20.1
+nexgen==0.9.1
+numpy==1.26.4
+pandas==2.1.4
+Pint==0.23
 zarr==2.13.3
diff --git a/requirements_dev.txt b/requirements_dev.txt
index 21094915..dec9dbfb 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,11 +1,11 @@
-dask==2022.11.1
-distributed==2022.11.1
+dask==2023.3.2
+distributed==2023.3.2
 h5py==3.8.0
 hdf5plugin==4.0.1
-nexgen==0.7.2
-numpy==1.23.5
-pandas==1.5.2
-Pint==0.20.1
+nexgen==0.9.1
+numpy==1.26.4
+pandas==2.1.4
+Pint==0.23
 pytest==7.2.0
 pytest-cov==4.0.0
 zarr==2.13.3
diff --git a/requirements_doc.txt b/requirements_doc.txt
index 47f6ad87..b12a4dbe 100644
--- a/requirements_doc.txt
+++ b/requirements_doc.txt
@@ -1,11 +1,11 @@
-dask==2022.11.1
-distributed==2022.11.1
+dask==2023.3.2
+distributed==2023.3.2
 h5py==3.8.0
 hdf5plugin==4.0.1
-nexgen==0.7.2
-numpy==1.23.5
-pandas==1.5.2
-Pint==0.20.1
+nexgen==0.9.1
+numpy==1.26.4
+pandas==2.1.4
+Pint==0.23
 pytest==7.1.2
 pytest-cov==3.0.0
 Sphinx==6.2.0
diff --git a/setup.cfg b/setup.cfg
index 64c982ef..4fdf6e11 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -14,8 +14,6 @@ classifiers =
     License :: OSI Approved :: BSD License
     Natural Language :: English
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.8
-    Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3.11
 keywords =
@@ -33,19 +31,19 @@ install_requires =
     dask[array,diagnostics,distributed]!=2021.3.*,<2023.4
     h5py>=3.8
     hdf5plugin>=4.0.1
-    nexgen>=0.7.2
-    numpy
+    nexgen>=0.9.1
+    numpy<2.0
     pandas
     pint
     zarr
 packages = find:
 package_dir =
     =src
-python_requires = >=3.8
+python_requires = >=3.10
 zip_safe = False
 
 [options.extras_require]
-dev = 
+dev =
     black
     pytest-cov
     pytest-random-order