diff --git a/gnu/packages/bioinformatics.scm b/gnu/packages/bioinformatics.scm
index c37fb6fe42..5c3606ffe6 100644
--- a/gnu/packages/bioinformatics.scm
+++ b/gnu/packages/bioinformatics.scm
@@ -12825,7 +12825,7 @@ (define-public pigx-scrnaseq
        ("python-pandas" ,python-pandas)
        ("python-magic" ,python-magic)
        ("python-numpy" ,python-numpy)
-       ("python-loompy" ,python-loompy)
+       ("python-loompy" ,python-loompy-for-pigx-scrnaseq)
        ("ghc-pandoc" ,ghc-pandoc)
        ("ghc-pandoc-citeproc" ,ghc-pandoc-citeproc)
        ("samtools" ,samtools)