diff --git a/tox.ini b/tox.ini
index 649f0898e..691ff2b42 100644
--- a/tox.ini
+++ b/tox.ini
@@ -21,9 +21,9 @@ changedir =
     test: .tmp/{envname}
     docs: doc
 deps =
-    dev: numpy>=0.0.dev0
-    dev: scipy>=0.0.dev0
-    dev: astropy>=0.0.dev0
+    dev: numpy==2.0.0rc1
+    dev: scipy==1.13.0
+    dev: astropy==6.1.0rc1
     dev: pyerfa>=0.0.dev0
     dev: matplotlib>=0.0.dev0
     dev: shapely>=0.0.dev0
@@ -100,7 +100,7 @@ extras =
 # for as long all test deps need to be manually pulled in above as well!
 install_command =
     !dev: python -I -m pip install
-    dev: python -I -m pip install -v --pre --no-deps
+    dev: python -I -m pip install -v --pre
 commands =
     test: pip freeze
     test: pytest --pyargs glue --cov glue --cov-config={toxinidir}/setup.cfg {env:MPLFLAGS} {posargs}