diff --git a/gfx/wr/webrender/src/device/gl.rs b/gfx/wr/webrender/src/device/gl.rs
index 188234f601b3..2c93beb5ec19 100644
--- a/gfx/wr/webrender/src/device/gl.rs
+++ b/gfx/wr/webrender/src/device/gl.rs
@@ -1474,10 +1474,10 @@ impl Device {
             ),
         };
 
-        let depth_format = if renderer_name.starts_with("Software WebRender") {
-            gl::DEPTH_COMPONENT16
+        let (depth_format, upload_method) = if renderer_name.starts_with("Software WebRender") {
+            (gl::DEPTH_COMPONENT16, UploadMethod::Immediate)
         } else {
-            gl::DEPTH_COMPONENT24
+            (gl::DEPTH_COMPONENT24, upload_method)
         };
 
         info!("GL texture cache {:?}, bgra {:?} swizzle {:?}, texture storage {:?}, depth {:?}",