diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index 044c210499..8ea0018c55 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -53355,7 +53355,10 @@ (define-public rust-pyo3-0.19
                 "0f1aqx947mzsrk05zdm9w2702lj5k9s97y9w9lxwkp2avk7sd0g6"))))
     (build-system cargo-build-system)
     (arguments
-     `(#:cargo-inputs
+     `(#:cargo-test-flags
+       '("--release" "--"
+         "--skip=exceptions::PyUnicodeDecodeError::new_utf8")
+       #:cargo-inputs
        (("rust-anyhow" ,rust-anyhow-1)
         ("rust-cfg-if" ,rust-cfg-if-1)
         ("rust-chrono" ,rust-chrono-0.4)