diff --git a/binder/environment.yml b/binder/environment.yml
index 5c49606..58d6665 100644
--- a/binder/environment.yml
+++ b/binder/environment.yml
@@ -40,7 +40,8 @@ dependencies:
   - xarray
   - zarr
   - sliderule
-  #- pip:
+  - pip:
+    - git+https://github.com/uw-cryo/fetch_dem.git
    # - porder
    # - pygeotools
    # - git+https://github.com/dshean/imview.git
diff --git a/binder/postBuild b/binder/postBuild
index 061fd40..8bad313 100644
--- a/binder/postBuild
+++ b/binder/postBuild
@@ -5,7 +5,7 @@
 # https://github.com/NeoGeographyToolkit/StereoPipeline/releases/download/3.0.0/StereoPipeline-3.0.0-2021-07-27-x86_64-Linux.tar.bz2
 # https://github.com/NeoGeographyToolkit/StereoPipeline/releases/download/2023-09-24-daily-build/StereoPipeline-3.4.0-alpha-2023-09-24-x86_64-Linux.tar.bz2
 # https://github.com/NeoGeographyToolkit/StereoPipeline/releases/download/3.3.0/StereoPipeline-3.3.0-Linux.tar.bz2
-DATE='2024-02-20'
+DATE='2024-02-23'
 VERSION="3.4.0-alpha"
 NAME=StereoPipeline-$VERSION-$DATE-x86_64-Linux
 wget -q https://github.com/NeoGeographyToolkit/StereoPipeline/releases/download/$DATE-daily-build/$NAME.tar.bz2