diff --git a/amazonka-lambda.cabal b/amazonka-lambda.cabal
--- a/amazonka-lambda.cabal
+++ b/amazonka-lambda.cabal
@@ -1,5 +1,5 @@
 name:                  amazonka-lambda
-version:               0.1.3
+version:               0.1.4
 synopsis:              Amazon Lambda SDK.
 homepage:              https://github.com/brendanhay/amazonka
 license:               OtherLicense
@@ -59,5 +59,5 @@
     other-modules:
 
     build-depends:
-          amazonka-core == 0.1.3.*
+          amazonka-core == 0.1.4.*
         , base          >= 4.7     && < 5
diff --git a/gen/Network/AWS/Lambda/Types.hs b/gen/Network/AWS/Lambda/Types.hs
--- a/gen/Network/AWS/Lambda/Types.hs
+++ b/gen/Network/AWS/Lambda/Types.hs
@@ -124,7 +124,7 @@
 instance Hashable Runtime
 
 instance FromText Runtime where
-    parser = takeText >>= \case
+    parser = takeLowerText >>= \case
         "nodejs" -> pure Nodejs
         e        -> fail $
             "Failure parsing Runtime from " ++ show e
@@ -149,7 +149,7 @@
 instance Hashable Mode
 
 instance FromText Mode where
-    parser = takeText >>= \case
+    parser = takeLowerText >>= \case
         "event" -> pure Event
         e       -> fail $
             "Failure parsing Mode from " ++ show e