diff --git a/xmlgen.cabal b/xmlgen.cabal
--- a/xmlgen.cabal
+++ b/xmlgen.cabal
@@ -1,5 +1,5 @@
 Name:                xmlgen
-Version:             0.6.2.0
+Version:             0.6.2.1
 Synopsis:            Fast XML generation library
 Description:         Library for high-performance XML generation.
 License:             BSD3
@@ -18,9 +18,9 @@
 Library
   Exposed-modules:   Text.XML.Generator
   Hs-Source-Dirs:    src
-  Build-Depends:     base >= 4.2 && < 4.7, blaze-builder == 0.3.*,
-                     bytestring >= 0.9 && < 0.11, containers >= 0.3 && < 0.6,
-                     mtl >= 2.0 && < 2.2, text >= 0.10 && < 0.12
+  Build-Depends:     base >= 4.2 && < 5, blaze-builder >= 0.3,
+                     bytestring >= 0.9, containers >= 0.3,
+                     mtl >= 2.0, text >= 0.10
   Ghc-Prof-Options: -auto-all -caf-all
   Default-language:  Haskell2010
 
@@ -28,18 +28,18 @@
   Type:              exitcode-stdio-1.0
   Hs-Source-Dirs:    test
   Main-Is:           GeneratorTest.hs
-  Build-depends:     base >= 4.2 && < 4.7, xmlgen, text >= 0.10 && < 0.12,
-                     containers >= 0.3 && < 0.6, hxt == 9.3.*, bytestring >= 0.9 && < 0.11,
-                     filepath == 1.3.*, process == 1.1.*, HUnit >= 1.2, QuickCheck >= 2.5
+  Build-depends:     base >= 4.2 && < 5, xmlgen, text >= 0.10,
+                     containers >= 0.3, hxt == 9.3.*, bytestring >= 0.9,
+                     filepath >= 1.3, process >= 1.1, HUnit >= 1.2, QuickCheck >= 2.5
   if !os(windows)
-    Build-depends:   unix >= 2.4 && < 2.7
+    Build-depends:   unix >= 2.4
 
   Default-language:  Haskell2010
 
 Benchmark xmlgen-bench
   Type:             exitcode-stdio-1.0
-  Build-Depends:    base >= 4.2 && < 4.7, text >= 0.10 && < 0.12, criterion == 0.6.*,
-                    bytestring >= 0.9 && < 0.11, xmlgen
+  Build-Depends:    base >= 4.2 && < 5, text >= 0.10, criterion >= 0.6,
+                    bytestring >= 0.9, xmlgen
   Hs-Source-Dirs:   test
   Ghc-Options:      -O2 -rtsopts
   Ghc-Prof-Options: -auto-all -caf-all