diff --git a/amazonka-cloudsearch-domains.cabal b/amazonka-cloudsearch-domains.cabal
--- a/amazonka-cloudsearch-domains.cabal
+++ b/amazonka-cloudsearch-domains.cabal
@@ -1,5 +1,5 @@
 name:                  amazonka-cloudsearch-domains
-version:               0.1.3
+version:               0.1.4
 synopsis:              Amazon CloudSearch Domain SDK.
 homepage:              https://github.com/brendanhay/amazonka
 license:               OtherLicense
@@ -41,5 +41,5 @@
     other-modules:
 
     build-depends:
-          amazonka-core == 0.1.3.*
+          amazonka-core == 0.1.4.*
         , base          >= 4.7     && < 5
diff --git a/gen/Network/AWS/CloudSearchDomains/Types.hs b/gen/Network/AWS/CloudSearchDomains/Types.hs
--- a/gen/Network/AWS/CloudSearchDomains/Types.hs
+++ b/gen/Network/AWS/CloudSearchDomains/Types.hs
@@ -187,7 +187,7 @@
 instance Hashable QueryParser
 
 instance FromText QueryParser where
-    parser = takeText >>= \case
+    parser = takeLowerText >>= \case
         "dismax"     -> pure Dismax
         "lucene"     -> pure Lucene
         "simple"     -> pure Simple
@@ -561,7 +561,7 @@
 instance Hashable ContentType
 
 instance FromText ContentType where
-    parser = takeText >>= \case
+    parser = takeLowerText >>= \case
         "application/json" -> pure ApplicationJson
         "application/xml"  -> pure ApplicationXml
         e                  -> fail $