diff --git a/docs/content/en/hugo-pipes/js.md b/docs/content/en/hugo-pipes/js.md
index a9befa220..63bd8bdd9 100644
--- a/docs/content/en/hugo-pipes/js.md
+++ b/docs/content/en/hugo-pipes/js.md
@@ -40,9 +40,6 @@ Note that this is meant for small data sets, e.g. config settings. For larger da
 minify [bool]
 : Let `js.Build` handle the minification.
 
-avoidTDZ {{< new-in "0.78.0" >}}
-: There is/was a bug in WebKit with severe performance issue with the tracking of TDZ checks in JavaScriptCore. Enabling this flag removes the TDZ and `const` assignment checks and may improve performance of larger JS codebases until the WebKit fix is in widespread use. See https://bugs.webkit.org/show_bug.cgi?id=199866
-
 inject [slice] {{< new-in "0.81.0" >}}
 : This option allows you to automatically replace a global variable with an import from another file. The path names must be relative to `assets`.  See https://esbuild.github.io/api/#inject
 
diff --git a/go.mod b/go.mod
index 56c2bdb63..4446af45a 100644
--- a/go.mod
+++ b/go.mod
@@ -18,7 +18,7 @@ require (
 	github.com/disintegration/gift v1.2.1
 	github.com/dlclark/regexp2 v1.4.0 // indirect
 	github.com/dustin/go-humanize v1.0.0
-	github.com/evanw/esbuild v0.8.46
+	github.com/evanw/esbuild v0.9.0
 	github.com/fortytw2/leaktest v1.3.0
 	github.com/frankban/quicktest v1.11.3
 	github.com/fsnotify/fsnotify v1.4.9
diff --git a/go.sum b/go.sum
index 10d9d4d77..b104a5e21 100644
--- a/go.sum
+++ b/go.sum
@@ -233,6 +233,8 @@ github.com/envoyproxy/protoc-gen-validate v0.1.0 h1:EQciDnbrYxy13PgWoY8AqoxGiPrp
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/evanw/esbuild v0.8.46 h1:RlryMOkj9pbbRog5IbHoVc5i6go4RIxa9BCcFDBozvA=
 github.com/evanw/esbuild v0.8.46/go.mod h1:y2AFBAGVelPqPodpdtxWWqe6n2jYf5FrsJbligmRmuw=
+github.com/evanw/esbuild v0.9.0 h1:ONAtJ2+GMa7odUBVzUZjcRAhDGHA02pzBNFDYjOsbJk=
+github.com/evanw/esbuild v0.9.0/go.mod h1:y2AFBAGVelPqPodpdtxWWqe6n2jYf5FrsJbligmRmuw=
 github.com/fatih/color v1.7.0 h1:DkWD4oS2D8LGGgTQ6IvwJJXSL5Vp2ffcQg58nFV38Ys=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fortytw2/leaktest v1.3.0 h1:u8491cBMTQ8ft8aeV+adlcytMZylmA5nnwwkRZjI8vw=
diff --git a/resources/resource_transformers/js/options.go b/resources/resource_transformers/js/options.go
index a199b2c14..ceed22f34 100644
--- a/resources/resource_transformers/js/options.go
+++ b/resources/resource_transformers/js/options.go
@@ -387,8 +387,6 @@ func toBuildOptions(opts Options) (buildOptions api.BuildOptions, err error) {
 		JSXFactory:  opts.JSXFactory,
 		JSXFragment: opts.JSXFragment,
 
-		AvoidTDZ: opts.AvoidTDZ,
-
 		Tsconfig: opts.tsConfig,
 
 		// Note: We're not passing Sourcefile to ESBuild.
diff --git a/resources/resource_transformers/js/options_test.go b/resources/resource_transformers/js/options_test.go
index f425c3e75..c178ee8c9 100644
--- a/resources/resource_transformers/js/options_test.go
+++ b/resources/resource_transformers/js/options_test.go
@@ -68,7 +68,6 @@ func TestToBuildOptions(t *testing.T) {
 		MinifyIdentifiers: true,
 		MinifySyntax:      true,
 		MinifyWhitespace:  true,
-		AvoidTDZ:          true,
 		Stdin: &api.StdinOptions{
 			Loader: api.LoaderJS,
 		},