diff --git a/feldspar-language.cabal b/feldspar-language.cabal
--- a/feldspar-language.cabal
+++ b/feldspar-language.cabal
@@ -1,5 +1,5 @@
 name:           feldspar-language
-version:        0.6.0.2
+version:        0.6.0.3
 synopsis:       A functional embedded language for DSP and parallelism
 description:    Feldspar (Functional Embedded Language for DSP and PARallelism)
                 is an embedded DSL for describing digital signal processing
@@ -132,7 +132,7 @@
     tagged                      >= 0.4    && < 0.5,
     tuple                       >= 0.2    && < 0.3,
     type-level                  >= 0.2.4  && < 0.3,
-    monad-par                   >= 0.3    && < 0.4,
+    monad-par                   >= 0.3    && < 0.3.4,
     QuickAnnotate               >= 0.6    && < 0.7
 
   other-extensions: