diff --git a/tests/regression.rs b/tests/regression.rs
index c84a25dd..9382f27a 100644
--- a/tests/regression.rs
+++ b/tests/regression.rs
@@ -262,7 +262,7 @@ fn issue_82() {
         INDEXED,
         BitDepth::Four,
         INDEXED,
-        BitDepth::Four,
+        BitDepth::Eight,
     );
 }