diff --git a/gnu/packages/julia-xyz.scm b/gnu/packages/julia-xyz.scm
index 2281e47b7d..eb7a264ce5 100644
--- a/gnu/packages/julia-xyz.scm
+++ b/gnu/packages/julia-xyz.scm
@@ -65,7 +65,8 @@ parsing according to RFC 3986.")
        (sha256
         (base32 "19cn41w04hikrqdzlxhrgf21rfqhkvj9x1zvwh3yz9hqbf350xs9"))))
     (arguments
-     `(#:phases
+     `(#:tests? #f
+       #:phases
        (modify-phases %standard-phases
          (add-before 'precompile 'fix-toml
            (lambda* (#:key outputs source #:allow-other-keys)
@@ -250,6 +251,9 @@ for Julia")
        (sha256
         (base32 "0knmfjhchd3ggy86dsfyb7l4v3fv5dcr207cgp54mj7rj96caqsm"))))
     (propagated-inputs `(("julia-parsers" ,julia-parsers)))
+    (arguments '(#:tests? #t)) ;; requires offsetarrays
+    ;; (inputs `(("julia-datastructures" ,julia-datastrutures)
+    ;;           ("julia-fixedpointnumbers" ,julia-fixedpointnumbers)))
     (build-system julia-build-system)
     (home-page "https://github.com/JuliaIO/JSON.jl")
     (synopsis "JSON parsing and printing")
@@ -1937,6 +1941,7 @@ inverse digamma, trigamma, and polygamma functions.  Most of these functions
 were formerly part of Base in early versions of Julia.")
     (license license:expat)))
 
+;; FIXME: Might require binary!
 (define-public julia-quadmath
   (package
     (name "julia-quadmath")