diff --git a/environment.yml b/environment.yml
deleted file mode 100644
index 0d3340ce..00000000
--- a/environment.yml
+++ /dev/null
@@ -1,13 +0,0 @@
-name: ifcbdb
-dependencies:
-- django
-- gunicorn
-- psycopg2
-- libiconv
-- tiledb
-- numba
-- pip
-- pip:
-  - celery
-  - pymemcache
-  - redis
diff --git a/ifcbdb/templates/base.html b/ifcbdb/templates/base.html
index 49a06586..261c978c 100644
--- a/ifcbdb/templates/base.html
+++ b/ifcbdb/templates/base.html
@@ -97,7 +97,7 @@
                 <div class="col-sm-12">
                 <ul class="nav justify-content-center">
                     <li class="nav-item">
-                <span class="px-2">Version 1.0 - December 2019</span>
+                <span class="px-2">Version 4.1 - April 2024</span>
             </li>
             <li class="nav-item">
                 <a class="px-2" href="{% url 'about_page' %}">About</a>
diff --git a/requirements.txt b/requirements.txt
index e65793ff..ed92d5ff 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,4 +14,4 @@ rectpack==0.2.2
 scikit-image==0.22.0
 pysmb==1.2.9.1
 pyyaml==6.0.1
-git+https://github.com/joefutrelle/pyifcb@v1.0.0
+git+https://github.com/joefutrelle/pyifcb@v1.1.0
diff --git a/utilities/auto_transfer.py b/utilities/auto_transfer.py
index 4eac59f3..3259be02 100644
--- a/utilities/auto_transfer.py
+++ b/utilities/auto_transfer.py
@@ -21,7 +21,6 @@ def load_config(config_file):
 
 def sync_ifcb(name, dashboard_url, ifcb_config):
     address = ifcb_config['address']
-    netbios_name = ifcb_config.get('netbios_name',None)
     username = ifcb_config.get('username','ifcb')
     password = ifcb_config.get('password','ifcb')
     share = ifcb_config.get('share','Data')
@@ -53,7 +52,7 @@ def hit_sync_endpoint(lid):
     logging.info(f'connecting to {name} ...')
 
     try:
-        ifcb = RemoteIfcb(address, username, password, netbios_name=netbios_name,
+        ifcb = RemoteIfcb(address, username, password,
             share=share, directory=directory, timeout=timeout)
 
         with ifcb:
@@ -67,7 +66,7 @@ def hit_sync_endpoint(lid):
         logging.info(f'transferring beads ...')
 
         try:
-            ifcb = RemoteIfcb(address, username, password, netbios_name=netbios_name,
+            ifcb = RemoteIfcb(address, username, password,
                 share=share, directory='beads', timeout=timeout)
 
             with ifcb: