diff --git a/gnu/packages/ci.scm b/gnu/packages/ci.scm
index cb55a62334..00be723eec 100644
--- a/gnu/packages/ci.scm
+++ b/gnu/packages/ci.scm
@@ -142,7 +142,7 @@ (define-public cuirass
       (inputs
        (list guile-3.0-latest
              guile-avahi
-             guile-fibers-1.1
+             guile-fibers-1.3
              guile-gcrypt
              guile-json-4
              guile-simple-zmq