diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 91e0e2ae8..211839631 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -114,7 +114,6 @@ jobs:
       matrix:
         os: ['ubuntu-latest', 'windows-latest', 'macos-14', 'macos-latest']
         python-version:
-          - "3.9"
           - "3.10"
           - "3.11"
           - "3.12"
@@ -127,24 +126,22 @@ jobs:
         include:
           # Basic dependencies only
           - os: ubuntu-latest
-            python-version: "3.9"
+            python-version: "3.10"
             architecture: 'x64'
             dependencies: 'none'
           # Absolute minimum dependencies
           - os: ubuntu-latest
-            python-version: "3.9"
+            python-version: "3.10"
             architecture: 'x64'
             dependencies: 'min'
           # Absolute minimum dependencies
           - os: ubuntu-latest
-            python-version: "3.10"
+            python-version: "3.11"
             architecture: 'x64'
             dependencies: 'min'
         exclude:
           # Use ubuntu-latest to cover the whole range of Python. For Windows
           # and macOS, checking oldest and newest should be sufficient.
-          - os: windows-latest
-            python-version: "3.10"
           - os: windows-latest
             python-version: "3.11"
           - os: windows-latest
@@ -154,15 +151,13 @@ jobs:
           - os: windows-latest
             python-version: "3.13t"
           - os: macos-14
-            python-version: "3.9"
+            python-version: "3.11"
           - os: macos-14
-            python-version: "3.10"
+            python-version: "3.12"
           - os: macos-14
-            python-version: "3.14"
+            python-version: "3.13"
           - os: macos-14
-            python-version: "3.14t"
-          - os: macos-latest
-            python-version: "3.10"
+            python-version: "3.13t"
           - os: macos-latest
             python-version: "3.11"
           - os: macos-latest
@@ -194,10 +189,10 @@ jobs:
           - os: macos-14
             dependencies: pre
           # Drop pre tests for SPEC-0-unsupported Python versions
-          - python-version: '3.9'
-            dependencies: pre
           - python-version: '3.10'
             dependencies: pre
+          - python-version: '3.11'
+            dependencies: pre
 
     env:
       DEPENDS: ${{ matrix.dependencies }}
diff --git a/pyproject.toml b/pyproject.toml
index af76b76a8..22506f4f0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@ readme = "README.rst"
 license = "MIT"
 requires-python = ">=3.9"
 dependencies = [
-  "numpy >=1.23",
+  "numpy >=1.24",
   "packaging >=20",
   "importlib_resources >=5.12; python_version < '3.12'",
   "typing_extensions >=4.6; python_version < '3.13'",
@@ -27,6 +27,7 @@ classifiers = [
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
+  "Programming Language :: Python :: 3.14",
   "Topic :: Scientific/Engineering",
 ]
 # Version from setuptools_scm
@@ -55,9 +56,9 @@ all = ["nibabel[dicomfs,indexed_gzip,minc2,spm,zstd]"]
 indexed_gzip = ["indexed_gzip >=1.6"]
 dicom = ["pydicom >=2.3"]
 dicomfs = ["nibabel[dicom]", "pillow >=8.4"]
-minc2 = ["h5py >=3.5"]
-spm = ["scipy >=1.8"]
-viewers = ["matplotlib >=3.5"]
+minc2 = ["h5py >=3.8"]
+spm = ["scipy >=1.10"]
+viewers = ["matplotlib >=3.7"]
 zstd = ["backports.zstd >=1.1; python_version<'3.14'"]
 # For doc and test, make easy to use outside of tox
 # tox should use these with extras instead of duplicating
diff --git a/uv.lock b/uv.lock
index 4ace6b6ba..d5c0e6db7 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1841,14 +1841,14 @@ requires-dist = [
     { name = "backports-zstd", marker = "python_full_version < '3.14' and extra == 'all'", specifier = ">=1.1" },
     { name = "backports-zstd", marker = "python_full_version < '3.14' and extra == 'zstd'", specifier = ">=1.1" },
     { name = "coverage", extras = ["toml"], marker = "extra == 'test'", specifier = ">=7.2" },
-    { name = "h5py", marker = "extra == 'all'", specifier = ">=3.5" },
-    { name = "h5py", marker = "extra == 'minc2'", specifier = ">=3.5" },
+    { name = "h5py", marker = "extra == 'all'", specifier = ">=3.8" },
+    { name = "h5py", marker = "extra == 'minc2'", specifier = ">=3.8" },
     { name = "importlib-resources", marker = "python_full_version < '3.12'", specifier = ">=5.12" },
     { name = "indexed-gzip", marker = "extra == 'all'", specifier = ">=1.6" },
     { name = "indexed-gzip", marker = "extra == 'indexed-gzip'", specifier = ">=1.6" },
     { name = "matplotlib", marker = "extra == 'doc'", specifier = ">=3.5" },
-    { name = "matplotlib", marker = "extra == 'viewers'", specifier = ">=3.5" },
-    { name = "numpy", specifier = ">=1.23" },
+    { name = "matplotlib", marker = "extra == 'viewers'", specifier = ">=3.7" },
+    { name = "numpy", specifier = ">=1.24" },
     { name = "numpydoc", marker = "extra == 'doc'", specifier = ">=1.9" },
     { name = "packaging", specifier = ">=20" },
     { name = "pillow", marker = "extra == 'all'", specifier = ">=8.4" },
@@ -1861,8 +1861,8 @@ requires-dist = [
     { name = "pytest-doctestplus", marker = "extra == 'test'", specifier = ">=1.4" },
     { name = "pytest-httpserver", marker = "extra == 'test'", specifier = ">=1.0.7" },
     { name = "pytest-xdist", marker = "extra == 'test'", specifier = ">=3.5" },
-    { name = "scipy", marker = "extra == 'all'", specifier = ">=1.8" },
-    { name = "scipy", marker = "extra == 'spm'", specifier = ">=1.8" },
+    { name = "scipy", marker = "extra == 'all'", specifier = ">=1.10" },
+    { name = "scipy", marker = "extra == 'spm'", specifier = ">=1.10" },
     { name = "sphinx", marker = "extra == 'doc'", specifier = ">=7.4" },
     { name = "texext", marker = "extra == 'doc'", specifier = ">=0.6.8" },
     { name = "tomli", marker = "python_full_version < '3.11' and extra == 'doc'", specifier = ">=2.3" },