diff --git a/amazonka-rds.cabal b/amazonka-rds.cabal
--- a/amazonka-rds.cabal
+++ b/amazonka-rds.cabal
@@ -1,5 +1,5 @@
 name:                  amazonka-rds
-version:               0.1.3
+version:               0.1.4
 synopsis:              Amazon Relational Database Service SDK.
 homepage:              https://github.com/brendanhay/amazonka
 license:               OtherLicense
@@ -97,5 +97,5 @@
     other-modules:
 
     build-depends:
-          amazonka-core == 0.1.3.*
+          amazonka-core == 0.1.4.*
         , base          >= 4.7     && < 5
diff --git a/gen/Network/AWS/RDS/Types.hs b/gen/Network/AWS/RDS/Types.hs
--- a/gen/Network/AWS/RDS/Types.hs
+++ b/gen/Network/AWS/RDS/Types.hs
@@ -1253,7 +1253,7 @@
 instance Hashable SourceType
 
 instance FromText SourceType where
-    parser = takeText >>= \case
+    parser = takeLowerText >>= \case
         "db-instance"        -> pure DbInstance
         "db-parameter-group" -> pure DbParameterGroup
         "db-security-group"  -> pure DbSecurityGroup
@@ -1462,7 +1462,7 @@
 instance Hashable ApplyMethod
 
 instance FromText ApplyMethod where
-    parser = takeText >>= \case
+    parser = takeLowerText >>= \case
         "immediate"      -> pure Immediate
         "pending-reboot" -> pure PendingReboot
         e                -> fail $