diff --git a/go.mod b/go.mod
index 11950a1..5ef4770 100644
--- a/go.mod
+++ b/go.mod
@@ -11,7 +11,7 @@ require (
 	github.com/microcosm-cc/bluemonday v1.0.21
 	github.com/rs/zerolog v1.28.0
 	github.com/stretchr/testify v1.8.1
-	github.com/yuin/gopher-lua v1.0.0
+	github.com/yuin/gopher-lua v1.1.0
 	golang.org/x/net v0.5.0
 )
 
@@ -22,6 +22,7 @@ require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/go-test/deep v1.1.0 // indirect
 	github.com/gogs/chardet v0.0.0-20211120154057-b7413eaefb8f // indirect
+	github.com/inbucket/gopher-json v0.1.0 // indirect
 	github.com/jaytaylor/html2text v0.0.0-20211105163654-bc68cce691ba // indirect
 	github.com/kr/pretty v0.3.1 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
diff --git a/go.sum b/go.sum
index 372756f..bad5e62 100644
--- a/go.sum
+++ b/go.sum
@@ -24,6 +24,8 @@ github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
 github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
 github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
 github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
+github.com/inbucket/gopher-json v0.1.0 h1:65EuDDYRghbv1w/P+ck0PrPiTqnJCDYwyb168Hnp9qc=
+github.com/inbucket/gopher-json v0.1.0/go.mod h1:1BK2XgU9y+ibiRkylJQeV44AV9DrO8dVsgOJ6vpqF3g=
 github.com/jaytaylor/html2text v0.0.0-20200412013138-3577fbdbcff7/go.mod h1:CVKlgaMiht+LXvHG173ujK6JUhZXKb2u/BQtjPDIvyk=
 github.com/jaytaylor/html2text v0.0.0-20211105163654-bc68cce691ba h1:QFQpJdgbON7I0jr2hYW7Bs+XV0qjc3d5tZoDnRFnqTg=
 github.com/jaytaylor/html2text v0.0.0-20211105163654-bc68cce691ba/go.mod h1:CVKlgaMiht+LXvHG173ujK6JUhZXKb2u/BQtjPDIvyk=
@@ -81,6 +83,8 @@ github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKs
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 github.com/yuin/gopher-lua v1.0.0 h1:pQCf0LN67Kf7M5u7vRd40A8M1I8IMLrxlqngUJgZ0Ow=
 github.com/yuin/gopher-lua v1.0.0/go.mod h1:GBR0iDaNXjAgGg9zfCvksxSRnQx76gclCIb7kdAd1Pw=
+github.com/yuin/gopher-lua v1.1.0 h1:BojcDhfyDWgU2f2TOzYK/g5p2gxMrku8oupLDqlnSqE=
+github.com/yuin/gopher-lua v1.1.0/go.mod h1:GBR0iDaNXjAgGg9zfCvksxSRnQx76gclCIb7kdAd1Pw=
 golang.org/x/net v0.0.0-20210501142056-aec3718b3fa0/go.mod h1:OJAsFXCWl8Ukc7SiCT/9KSuxbyM7479/AVlXFRxuMCk=
 golang.org/x/net v0.5.0 h1:GyT4nK/YDHSqa1c4753ouYCDajOYKTja9Xb/OHtgvSw=
 golang.org/x/net v0.5.0/go.mod h1:DivGGAXEgPSlEBzxGzZI+ZLohi+xUj054jfeKui00ws=
diff --git a/pkg/extension/luahost/pool.go b/pkg/extension/luahost/pool.go
index 60c7d46..9ed1aa5 100644
--- a/pkg/extension/luahost/pool.go
+++ b/pkg/extension/luahost/pool.go
@@ -5,6 +5,7 @@ import (
 	"sync"
 
 	"github.com/cjoudrey/gluahttp"
+	"github.com/inbucket/gopher-json"
 	lua "github.com/yuin/gopher-lua"
 )
 
@@ -28,6 +29,7 @@ func (lp *statePool) newState() (*lua.LState, error) {
 
 	// Load supplemental native modules.
 	ls.PreloadModule("http", gluahttp.NewHttpModule(&http.Client{}).Loader)
+	ls.PreloadModule("json", json.Loader)
 
 	// Setup channels.
 	for name, ch := range lp.channels {