diff --git a/binder/environment.yml b/binder/environment.yml
index 29ca39e93..acffaf413 100644
--- a/binder/environment.yml
+++ b/binder/environment.yml
@@ -11,6 +11,5 @@ dependencies:
   - pip
   - pymongo
   - nodejs
-  - dnspython
   - pip:
     - mtools
\ No newline at end of file
diff --git a/binder/postBuild b/binder/postBuild
index 9dbfce15d..38f33df6a 100755
--- a/binder/postBuild
+++ b/binder/postBuild
@@ -5,8 +5,8 @@ npm install -g m
 
 pip install git+https://github.com/blink1073/mtools@pymongo-4
 
-pip install -e .
+pip install -e ".[srv]"
 
 yes | m $(cat binder/VERSION)
 
-m
\ No newline at end of file
+m