diff --git a/CHANGELOG b/CHANGELOG
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,6 @@
+- 0.8.0.0
+    * Bump blaze-builder dependency to 0.4
+
 - 0.7.1.0
     * Add `itemscope` and `itemprop` attributes
     * Constraint `blaze-markup` dependency
diff --git a/blaze-html.cabal b/blaze-html.cabal
--- a/blaze-html.cabal
+++ b/blaze-html.cabal
@@ -1,5 +1,5 @@
 Name:         blaze-html
-Version:      0.7.1.0
+Version:      0.8.0.0
 Homepage:     http://jaspervdj.be/blaze
 Bug-Reports:  http://github.com/jaspervdj/blaze-html/issues
 License:      BSD3
@@ -51,11 +51,11 @@
     Text.Blaze.XHtml5.Attributes
 
   Build-depends:
-    base          >= 4     && < 5,
-    blaze-builder >= 0.2   && < 0.4,
-    blaze-markup  >= 0.6.3 && < 0.7,
-    bytestring    >= 0.9   && < 0.11,
-    text          >= 0.10  && < 1.3
+    base          >= 4    && < 5,
+    blaze-builder >= 0.4  && < 0.5,
+    blaze-markup  >= 0.7  && < 0.8,
+    bytestring    >= 0.9  && < 0.11,
+    text          >= 0.10 && < 1.3
 
 Test-suite blaze-html-tests
   Type:           exitcode-stdio-1.0
@@ -76,11 +76,11 @@
     test-framework-hunit       >= 0.3 && < 0.4,
     test-framework-quickcheck2 >= 0.3 && < 0.4,
     -- Copied from regular dependencies...
-    base          >= 4     && < 5,
-    blaze-builder >= 0.2   && < 0.4,
-    blaze-markup  >= 0.6.3 && < 0.7,
-    bytestring    >= 0.9   && < 0.11,
-    text          >= 0.10  && < 1.3
+    base          >= 4    && < 5,
+    blaze-builder >= 0.4  && < 0.5,
+    blaze-markup  >= 0.7  && < 0.8,
+    bytestring    >= 0.9  && < 0.11,
+    text          >= 0.10 && < 1.3
 
 Source-repository head
   Type:     git
diff --git a/src/Text/Blaze/Html5/Attributes.hs b/src/Text/Blaze/Html5/Attributes.hs
--- a/src/Text/Blaze/Html5/Attributes.hs
+++ b/src/Text/Blaze/Html5/Attributes.hs
@@ -53,6 +53,8 @@
     , ismap
     , item
     , itemprop
+    , itemscope
+    , itemtype
     , keytype
     , label
     , lang
@@ -1026,6 +1028,42 @@
          -> Attribute       -- ^ Resulting attribute.
 itemprop = attribute "itemprop" " itemprop=\""
 {-# INLINE itemprop #-}
+
+-- WARNING: The next block of code was automatically generated by
+-- src/Util/GenerateHtmlCombinators.hs:249
+--
+-- | Combinator for the @itemscope@ attribute.
+--
+-- Example:
+--
+-- > div ! itemscope "bar" $ "Hello."
+--
+-- Result:
+--
+-- > <div itemscope="bar">Hello.</div>
+--
+itemscope :: AttributeValue  -- ^ Attribute value.
+          -> Attribute       -- ^ Resulting attribute.
+itemscope = attribute "itemscope" " itemscope=\""
+{-# INLINE itemscope #-}
+
+-- WARNING: The next block of code was automatically generated by
+-- src/Util/GenerateHtmlCombinators.hs:249
+--
+-- | Combinator for the @itemtype@ attribute.
+--
+-- Example:
+--
+-- > div ! itemtype "bar" $ "Hello."
+--
+-- Result:
+--
+-- > <div itemtype="bar">Hello.</div>
+--
+itemtype :: AttributeValue  -- ^ Attribute value.
+         -> Attribute       -- ^ Resulting attribute.
+itemtype = attribute "itemtype" " itemtype=\""
+{-# INLINE itemtype #-}
 
 -- WARNING: The next block of code was automatically generated by
 -- src/Util/GenerateHtmlCombinators.hs:249
diff --git a/src/Text/Blaze/XHtml5/Attributes.hs b/src/Text/Blaze/XHtml5/Attributes.hs
--- a/src/Text/Blaze/XHtml5/Attributes.hs
+++ b/src/Text/Blaze/XHtml5/Attributes.hs
@@ -53,6 +53,8 @@
     , ismap
     , item
     , itemprop
+    , itemscope
+    , itemtype
     , keytype
     , label
     , lang
@@ -1026,6 +1028,42 @@
          -> Attribute       -- ^ Resulting attribute.
 itemprop = attribute "itemprop" " itemprop=\""
 {-# INLINE itemprop #-}
+
+-- WARNING: The next block of code was automatically generated by
+-- src/Util/GenerateHtmlCombinators.hs:249
+--
+-- | Combinator for the @itemscope@ attribute.
+--
+-- Example:
+--
+-- > div ! itemscope "bar" $ "Hello."
+--
+-- Result:
+--
+-- > <div itemscope="bar">Hello.</div>
+--
+itemscope :: AttributeValue  -- ^ Attribute value.
+          -> Attribute       -- ^ Resulting attribute.
+itemscope = attribute "itemscope" " itemscope=\""
+{-# INLINE itemscope #-}
+
+-- WARNING: The next block of code was automatically generated by
+-- src/Util/GenerateHtmlCombinators.hs:249
+--
+-- | Combinator for the @itemtype@ attribute.
+--
+-- Example:
+--
+-- > div ! itemtype "bar" $ "Hello."
+--
+-- Result:
+--
+-- > <div itemtype="bar">Hello.</div>
+--
+itemtype :: AttributeValue  -- ^ Attribute value.
+         -> Attribute       -- ^ Resulting attribute.
+itemtype = attribute "itemtype" " itemtype=\""
+{-# INLINE itemtype #-}
 
 -- WARNING: The next block of code was automatically generated by
 -- src/Util/GenerateHtmlCombinators.hs:249