diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,7 @@
+## 1.2.3.3
+
+* Allow blaze-builder 0.4
+
 ## 1.2.3.2
 
 * Doc fix [#44](https://github.com/snoyberg/xml/pull/44)
diff --git a/xml-conduit.cabal b/xml-conduit.cabal
--- a/xml-conduit.cabal
+++ b/xml-conduit.cabal
@@ -1,5 +1,5 @@
 name:            xml-conduit
-version:         1.2.3.2
+version:         1.2.3.3
 license:         BSD3
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>, Aristid Breitkreuz <aristidb@googlemail.com>
@@ -25,7 +25,7 @@
                    , containers                >= 0.2
                    , xml-types                 >= 0.3.4    && < 0.4
                    , attoparsec                >= 0.10
-                   , blaze-builder             >= 0.2      && < 0.4
+                   , blaze-builder             >= 0.2      && < 0.5
                    , transformers              >= 0.2      && < 0.5
                    , data-default
                    , system-filepath           >= 0.4      && < 0.5