diff --git a/.github/workflows/ci_workflows.yml b/.github/workflows/ci_workflows.yml
index ae3ad8d04..d703f27ab 100644
--- a/.github/workflows/ci_workflows.yml
+++ b/.github/workflows/ci_workflows.yml
@@ -45,6 +45,7 @@ jobs:
         - linux: py310-test-pyqt63-all
         - linux: py310-test-pyqt64-all
         - linux: py311-test-pyqt514
+        - linux: py311-test-pyqt515-lts-all
 
         # Documentation build
         - linux: py38-docs-pyqt514
diff --git a/glue/viewers/image/qt/tests/test_data_viewer.py b/glue/viewers/image/qt/tests/test_data_viewer.py
index c4a5031c7..9c443f32c 100644
--- a/glue/viewers/image/qt/tests/test_data_viewer.py
+++ b/glue/viewers/image/qt/tests/test_data_viewer.py
@@ -3,6 +3,7 @@
 import os
 import gc
 from collections import Counter
+from packaging.version import Version
 
 import pytest
 
@@ -30,6 +31,8 @@
 
 from ..data_viewer import ImageViewer
 
+NPY_GE_1_25 = Version(np.__version__) >= Version('1.25')
+
 DATA = os.path.join(os.path.dirname(__file__), 'data')
 
 
@@ -663,6 +666,7 @@ def test_linking_and_enabling(self):
         assert not self.viewer.layers[2].enabled  # image subset
         assert self.viewer.layers[3].enabled  # scatter subset
 
+    @pytest.mark.skipif(NPY_GE_1_25, reason='`np.sum` can not be serialized after numpy/numpy#23020')
     def test_save_aggregate_slice(self, tmpdir):
 
         # Regression test to make sure that image viewers that include
diff --git a/tox.ini b/tox.ini
index e7ae8b735..f1f9b3ad0 100644
--- a/tox.ini
+++ b/tox.ini
@@ -29,11 +29,12 @@ deps =
     pyside515: PySide2==5.15.*
     pyside63: PySide6==6.3.*
     pyside64: PySide6==6.4.*
-    # Pin numpy-dev until #2353 is resolved
-    dev: git+https://github.com/numpy/numpy@9b6a7b4f8
+    dev: git+https://github.com/numpy/numpy
     dev: git+https://github.com/astropy/astropy
     lts: astropy==5.0.*
     lts: matplotlib==3.5.*
+    # Pin numpy-lts until permanent solution for #2353/#2428
+    lts: numpy==1.24.*
     legacy: numpy==1.17.*
     legacy: matplotlib==3.2.*
     legacy: scipy==1.1.*