diff --git a/CHANGELOG.md b/CHANGELOG.md
index 888ae37..cb96bfa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,9 @@
-## corn v2023.08.01
+## corn v2023.08.03
+* added spectral
+* added scikit-image
+* downgraded to jupyterlab 3.5
+
+## corn v2023.08.02
 
 * using earthaccess v0.5.3
 * pinned netcdf to 1.6.4 but still getting libnetcdf 1.9.2 via conda
diff --git a/ci/conda-linux-64.lock b/ci/conda-linux-64.lock
index bb4ece7..e883971 100644
--- a/ci/conda-linux-64.lock
+++ b/ci/conda-linux-64.lock
@@ -1,6 +1,6 @@
 # Generated by conda-lock.
 # platform: linux-64
-# input_hash: 769a06cd19598d17bc0e5ae6ec8481ddbe13fcf8b8dfd8d73f19c809516f7a43
+# input_hash: 3702816186c79b02d437e2401be1866506d502b5cfb3036d878ede9be16e2233
 @EXPLICIT
 https://conda.anaconda.org/conda-forge/linux-64/_libgcc_mutex-0.1-conda_forge.tar.bz2#d7c89558ba9fa0495403155b64376d81
 https://conda.anaconda.org/conda-forge/linux-64/ca-certificates-2023.7.22-hbcca054_0.conda#a73ecd2988327ad4c8f2c331482917f2
@@ -31,6 +31,7 @@ https://conda.anaconda.org/conda-forge/linux-64/geos-3.11.2-hcb278e6_0.conda#3b8
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 https://conda.anaconda.org/conda-forge/linux-64/giflib-5.2.1-h0b41bf4_3.conda#96f3b11872ef6fad973eac856cd2624f
+https://conda.anaconda.org/conda-forge/linux-64/gmp-6.2.1-h58526e2_0.tar.bz2#b94cf2db16066b242ebd26db2facbd56
 https://conda.anaconda.org/conda-forge/linux-64/icu-72.1-hcb278e6_0.conda#7c8d20d847bb45f56bd941578fcfa146
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@@ -60,7 +61,7 @@ https://conda.anaconda.org/conda-forge/linux-64/lz4-c-1.9.4-hcb278e6_0.conda#318
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-https://conda.anaconda.org/conda-forge/linux-64/openssl-3.1.1-hd590300_1.conda#2e1d7b458ac8f1e3ca4e18b77add6277
+https://conda.anaconda.org/conda-forge/linux-64/openssl-3.1.2-hd590300_0.conda#e5ac5227582d6c83ccf247288c0eb095
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@@ -127,6 +128,7 @@ https://conda.anaconda.org/conda-forge/linux-64/libtiff-4.5.1-h8b53f26_0.conda#8
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 https://conda.anaconda.org/conda-forge/linux-64/orc-1.9.0-h385abfd_1.conda#2cd5aac7ef1b4c6ac51bf521251a89b3
+https://conda.anaconda.org/conda-forge/linux-64/pandoc-3.1.3-h32600fe_0.conda#8287aeb8462e2d4b235eff788e75919d
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@@ -181,6 +183,7 @@ https://conda.anaconda.org/conda-forge/noarch/jsonpointer-2.0-py_0.tar.bz2#07d85
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+https://conda.anaconda.org/conda-forge/noarch/lazy_loader-0.2-pyhd8ed1ab_0.conda#d060d017720c9882c4eca0544a4a0592
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@@ -274,7 +277,6 @@ https://conda.anaconda.org/conda-forge/noarch/aioitertools-0.11.0-pyhd8ed1ab_0.t
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-https://conda.anaconda.org/conda-forge/noarch/async-lru-2.0.4-pyhd8ed1ab_0.conda#3d081de3a6ea9f894bbb585e8e3a4dcb
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@@ -296,7 +298,7 @@ https://conda.anaconda.org/conda-forge/noarch/configobj-5.0.8-pyhd8ed1ab_0.conda
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-https://conda.anaconda.org/conda-forge/linux-64/fonttools-4.41.1-py39hd1e30aa_0.conda#c4d3bada7f301485049354c1e2a05067
+https://conda.anaconda.org/conda-forge/linux-64/fonttools-4.42.0-py39hd1e30aa_0.conda#03e44d84ea9dd2432a633407401e5688
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@@ -325,11 +327,13 @@ https://conda.anaconda.org/conda-forge/noarch/pyct-core-0.4.6-py_0.tar.bz2#55ec5
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+https://conda.anaconda.org/conda-forge/linux-64/pywavelets-1.4.1-py39h389d5f1_0.conda#9eeb2b2549f836ca196c6cbd22344122
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+https://conda.anaconda.org/conda-forge/noarch/spectral-0.23.1-pyh1a96a4e_0.tar.bz2#2b82be7e4e8acf268431f5b636e25e94
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@@ -352,6 +356,7 @@ https://conda.anaconda.org/conda-forge/linux-64/geotiff-1.7.1-h22adcc9_11.conda#
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+https://conda.anaconda.org/conda-forge/noarch/imageio-2.31.1-pyh24c5eb1_0.conda#1051cc0376612ba101d4f59e954a1ff4
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 https://conda.anaconda.org/conda-forge/noarch/jupyterlab-git-0.41.0-pyhd8ed1ab_1.conda#5985549f77be4aae95bfd9e1a7916144
-https://conda.anaconda.org/conda-forge/noarch/notebook-7.0.1-pyhd8ed1ab_0.conda#f497e288a2256929a633f28ba6147e65
+https://conda.anaconda.org/conda-forge/noarch/notebook-6.5.4-pyha770c72_0.conda#ec4ce3ce0a55ce21b6f5b86049b97af9
 https://conda.anaconda.org/conda-forge/noarch/seaborn-0.12.2-hd8ed1ab_0.conda#50847a47c07812f88581081c620f5160
 https://conda.anaconda.org/conda-forge/noarch/icepyx-0.7.0-pyhd8ed1ab_0.conda#03cf6dbe3a74ae873628057eb1167d80
+https://conda.anaconda.org/conda-forge/noarch/jupyterlab-3.5.3-pyhd8ed1ab_0.conda#69f71bc3d176b3ad3d9564a32bd049b8
 https://conda.anaconda.org/conda-forge/noarch/nbgitpuller-1.1.1-pyhd8ed1ab_0.tar.bz2#a2c72cf8c5fb4cd269bff97e9bf196e8
+https://conda.anaconda.org/conda-forge/noarch/dask-labextension-6.1.0-pyhd8ed1ab_0.conda#a323c077b8c653007d6fe3a340b01240
+https://conda.anaconda.org/conda-forge/noarch/jupyterhub-singleuser-4.0.1-pyh2a2186d_0.conda#733404807b19c4321b325a6dfdc59deb
diff --git a/ci/environment.yml b/ci/environment.yml
index 155d1f7..cc7abf2 100644
--- a/ci/environment.yml
+++ b/ci/environment.yml
@@ -34,7 +34,7 @@ dependencies:
   - lxml
   - ipyleaflet
   - dask-labextension
-  - jupyterlab>=4.0
+  - jupyterlab<4.0a
   - jupyter-server-proxy
   - jupyterhub-singleuser
   - jupyterlab-geojson
@@ -51,6 +51,8 @@ dependencies:
   - kerchunk
   - rechunker
   - pqdm
+  - spectral
+  - scikit-image
   - coiled
   - s3fs
   - nbgitpuller