diff --git a/gnu/packages/diffoscope.scm b/gnu/packages/diffoscope.scm
index 9782f37cd6..743447a9d5 100644
--- a/gnu/packages/diffoscope.scm
+++ b/gnu/packages/diffoscope.scm
@@ -157,7 +157,6 @@
              binwalk
              python-pytest
              python-chardet
-             python-black
              python-h5py
              python-pypdf2
              python-progressbar33