diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index b45bba91b6..244eeae904 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -44389,7 +44389,7 @@ (define-public rust-pyo3-0.16
         ("rust-cfg-if" ,rust-cfg-if-1)
         ("rust-eyre" ,rust-eyre-0.6)
         ("rust-hashbrown" ,rust-hashbrown-0.11)
-        ("rust-indexmap" ,rust-indexmap-1)
+        ("rust-indexmap" ,rust-indexmap-1.7)
         ("rust-indoc" ,rust-indoc-1)
         ("rust-inventory" ,rust-inventory-0.2)
         ("rust-libc" ,rust-libc-0.2)