diff --git a/tests/files/issue-553.png b/tests/files/issue-553.png
deleted file mode 100644
index b42a9f50..00000000
Binary files a/tests/files/issue-553.png and /dev/null differ
diff --git a/tests/regression.rs b/tests/regression.rs
index 822bce26..d4166762 100644
--- a/tests/regression.rs
+++ b/tests/regression.rs
@@ -225,19 +225,3 @@ fn issue_182() {
         BitDepth::One,
     );
 }
-
-#[test]
-fn issue_553() {
-    let png = test_it_converts(
-        "tests/files/issue-553.png",
-        None,
-        INDEXED,
-        BitDepth::Eight,
-        INDEXED,
-        BitDepth::Eight,
-    );
-    match png.ihdr.color_type {
-        ColorType::Indexed { palette } => assert_eq!(palette.len(), 256),
-        _ => unreachable!(),
-    };
-}