diff --git a/+bot/+internal/+util/getToolboxVersion.m b/+bot/+internal/+util/getToolboxVersion.m
index 3ae296d..4406aba 100644
--- a/+bot/+internal/+util/getToolboxVersion.m
+++ b/+bot/+internal/+util/getToolboxVersion.m
@@ -21,8 +21,9 @@
             'MATLAB''s search path.'], strjoin(strcat({'    '}, pathList), newline))
     end
 
-    [~, toolboxFolderName] = fileparts( bot.internal.util.toolboxdir );
-    
+    [~, toolboxFolderName, ext] = fileparts( bot.internal.util.toolboxdir );
+    toolboxFolderName = [toolboxFolderName ext]; % this is a directory so any .xx should be included
+
     S = ver(toolboxFolderName);
     
     if numel(S) > 1
diff --git a/README.md b/README.md
index de4f216..324b3c2 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ The easiest way to install the Brain Observatory Toolbox is to use the [**Add-on
 3. Press the "Add" button. ![image](https://user-images.githubusercontent.com/23032671/188341517-6c2d372a-9eac-4aed-974a-a102880212da.png)
 
 #### Required products
-* MATLAB (R2021a or later)
+* MATLAB (R2023b or later)
 * Image Processing Toolbox (if running the Visual Coding 2P demonstration `OphysDemo.mlx`)
 
 ----