diff --git a/tox.ini b/tox.ini
index 02de7a7e0..d960e6735 100644
--- a/tox.ini
+++ b/tox.ini
@@ -90,16 +90,16 @@ deps =
   # Numpy 2.0 is a major breaking release; we cannot put much effort into
   # supporting until it's at least RC stable
   pre: numpy <2.0.dev0
-  dev: numpy >=2.0.dev0
+  dev: numpy >=2.1.dev0
   # Scipy stopped producing win32 wheels at py310
-  py3{8,9}-full-x86,x64,arm64: scipy >=1.6
+  py3{8,9}-full-x86,{full,pre}-{x64,arm64}: scipy >=1.6
   # Matplotlib depends on scipy, so cannot be built for py310 on x86
-  py3{8,9}-full-x86,x64,arm64: matplotlib >=3.4
+  py3{8,9}-full-x86,{full,pre}-{x64,arm64}: matplotlib >=3.4
   # h5py stopped producing win32 wheels at py39
-  py38-full-x86,x64,arm64: h5py >=2.10
-  full,pre,dev: pillow >=8.1
-  full,pre,dev: indexed_gzip >=1.4
-  full,pre,dev: pyzstd >=0.14.3
+  py38-full-x86,{full,pre}-{x64,arm64}: h5py >=2.10
+  full,pre: pillow >=8.1
+  full,pre: indexed_gzip >=1.4
+  full,pre: pyzstd >=0.14.3
   full,pre: pydicom >=2.1
   dev: pydicom @ git+https://github.com/pydicom/pydicom.git@main