diff --git a/rekahsoft-gnu/packages/haskell-web.scm b/rekahsoft-gnu/packages/haskell-web.scm
index 30b8cbe..c7fe1e4 100644
--- a/rekahsoft-gnu/packages/haskell-web.scm
+++ b/rekahsoft-gnu/packages/haskell-web.scm
@@ -101,22 +101,29 @@
     (license license:bsd-3)))
 
 (define-public ghc-clay
-  (package
-    (name "ghc-clay")
-    (version "0.13.3")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append
-                    "https://hackage.haskell.org/package/clay/clay-" version
-                    ".tar.gz"))
-              (sha256
-               (base32
-                "192lsbyj6azjs2ygpx4i47fyr8zfmvwcas8mia07ndqglk2c9csx"))))
-    (build-system haskell-build-system)
-    (native-inputs `(("ghc-hspec" ,ghc-hspec)
-                     ("ghc-hspec-discover" ,ghc-hspec-discover)))
-    (home-page "http://fvisser.nl/clay")
-    (synopsis "CSS preprocessor as embedded Haskell.")
-    (description
-     "Clay is a CSS preprocessor like LESS and Sass, but implemented as an embedded domain specific language (EDSL) in Haskell. This means that all CSS selectors and style rules are first class Haskell functions, which makes reuse and composability easy. . The project is described on <http://fvisser.nl/clay>. . The API documentation can be found in the top level module \"Clay\".")
-    (license license:bsd-3)))
+  ;; Temporarily use tip-of-master as 0.14.0 requires older versions of ghc
+  (let ((commit "0504045fd7a3e6eb19fec2eac92fb3e81daf84aa")
+        (revision "1"))
+    (package
+      (name "ghc-clay")
+      (version (git-version "0.14.0" revision commit))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/sebastiaanvisser/clay")
+                      (commit commit)))
+                (file-name (git-file-name name version))
+                (sha256
+                 (base32
+                  "0f9kl7iqh70nl0lwvpb1mh4r2i1y8x7waaxfqzl7lma84aivkfzd"))))
+      (build-system haskell-build-system)
+      (native-inputs (list ghc-hspec ghc-hspec-discover))
+      (home-page "http://fvisser.nl/clay")
+      (synopsis "CSS preprocessor as embedded Haskell.")
+      (description
+       "Clay is a CSS preprocessor like LESS and Sass, but implemented as an embedded
+domain specific language (EDSL) in Haskell.  This means that all CSS selectors
+and style rules are first class Haskell functions, which makes reuse and
+composability easy. .  The project is described on <http://fvisser.nl/clay>. .
+The API documentation can be found in the top level module \"Clay\".")
+      (license license:bsd-3))))