diff --git a/gnu/packages/bioinformatics.scm b/gnu/packages/bioinformatics.scm
index 4f4be10a472..b47caa41c76 100644
--- a/gnu/packages/bioinformatics.scm
+++ b/gnu/packages/bioinformatics.scm
@@ -2896,8 +2896,7 @@ demultiplexing step.")
            python-scipy
            python-tqdm))
     (native-inputs
-     (list python-black
-           python-flake8
+     (list python-flake8
            python-poetry-core
            python-pytest))
     (home-page "https://github.com/JonathanShor/DoubletDetection")