diff --git a/ci/min-deps.yml b/ci/min-deps.yml
index af4a732c..7debcf95 100644
--- a/ci/min-deps.yml
+++ b/ci/min-deps.yml
@@ -3,18 +3,15 @@ channels:
   - conda-forge
   - nodefaults
 dependencies:
-  - h5netcdf
   - h5py
   - hdf5
   - netcdf4
   - xarray>=2024.6.0
   - numpy>=2.0.0
   - numcodecs
-  - imagecodecs>=2024.6.1
   - packaging
   - ujson
   - universal_pathlib
-  - hdf5plugin
   # Testing
   - codecov
   - pre-commit
@@ -26,6 +23,3 @@ dependencies:
   - pytest
   - pooch
   - fsspec
-  - pip
-  - pip:
-    - imagecodecs-numcodecs==2024.6.1
diff --git a/pyproject.toml b/pyproject.toml
index 672398f7..64453032 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,11 +25,7 @@ dependencies = [
     "numpy>=2.0.0",
     "packaging",
     "universal-pathlib",
-    "h5py",
-    "hdf5plugin",
     "numcodecs",
-    "imagecodecs",
-    "imagecodecs-numcodecs==2024.6.1",
     "ujson",
 ]
 
@@ -41,11 +37,12 @@ test = [
     "h5netcdf",
     "h5py",
     "hdf5plugin",
+    "imagecodecs",
+    "imagecodecs-numcodecs==2024.6.1",
     "kerchunk>=0.2.5",
     "mypy",
     "netcdf4",
     "numcodecs",
-    "imagecodecs-numcodecs",
     "pandas-stubs",
     "pooch",
     "pre-commit",