diff --git a/json-spec-elm.cabal b/json-spec-elm.cabal
--- a/json-spec-elm.cabal
+++ b/json-spec-elm.cabal
@@ -1,6 +1,6 @@
 cabal-version:       3.0
 name:                json-spec-elm
-version:             0.4.0.1
+version:             0.4.0.2
 synopsis:            Elm code generate for `json-spec`.
 description:         
                      Produce elm types, encoders, and decoders from a
@@ -24,7 +24,7 @@
     , base                 >= 4.17.2.1 && < 4.20
     , containers           >= 0.6.7    && < 0.7
     , elm-syntax           >= 0.3.2.0  && < 0.4
-    , json-spec            >= 0.3.0.0  && < 0.4
+    , json-spec            >= 0.3.0.0  && < 0.6
     , text                 >= 2.0.2    && < 2.2
 
 common warnings
@@ -46,13 +46,13 @@
   ghc-options:
     -Wunused-packages
   build-depends:
-    , bound                >= 2.0.7    && < 2.1
-    , mtl                  >= 2.2.2    && < 2.4
+    , bound                >= 2.0.7 && < 2.1
+    , mtl                  >= 2.2.2 && < 2.4
 
 flag compile-elm
   description:
-    Set this flag to run the Elm compilation tests, which requires
-    Elm to be installed on the system.
+    Set this flag to run the Elm compilation tests, which requires Elm
+    to be installed on the system.
   default: False
 
 test-suite compile-elm
diff --git a/test/test-pass.hs b/test/test-pass.hs
--- a/test/test-pass.hs
+++ b/test/test-pass.hs
@@ -1,4 +1,15 @@
 module Main (main) where
 
 main :: IO ()
-main = pure ()
+main =
+  putStrLn $
+    unlines
+      [ ""
+      , ""
+      , "    NB! We are _NOT_ really running the tests because the"
+      , "    `compile-elm` flag is not set. If you are sure that the"
+      , "    proper Elm tools are installed on the system, then you can"
+      , "    set the `compile-elm` flag and real tests will be run."
+      , ""
+      , ""
+      ]