diff --git a/ascii.cabal b/ascii.cabal
--- a/ascii.cabal
+++ b/ascii.cabal
@@ -1,5 +1,5 @@
 Name:                ascii
-Version:             0.0.2
+Version:             0.0.2.1
 Synopsis:            Type-safe, bytestring-based ASCII values.
 License:             BSD3
 License-file:        LICENSE
@@ -15,6 +15,6 @@
   Build-depends:       base             >= 4             && < 5
                      , bytestring       >= 0.9           && < 0.10
                      , text             >= 0.11          && < 0.12
-                     , blaze-builder    >= 0.2.1.4       && < 0.3
+                     , blaze-builder    >= 0.2.1.4       && < 0.4
                      , case-insensitive >= 0.2           && < 0.3
   Ghc-options:         -Wall