diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 00000000..fffa0569
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,13 @@
+FROM openjdk:slim
+
+RUN apt update && apt install -y git
+
+WORKDIR /usr/src/jslt
+
+COPY . .
+
+RUN ./gradlew :playground:shadowJar
+
+EXPOSE 9999
+
+CMD ["java", "-cp", "playground/build/libs/playground-0.0.1-all.jar", "no.priv.garshol.jslt.playground.PlaygroundServer", "9999"]
diff --git a/playground/README.md b/playground/README.md
index 5a5e7f6f..fe2e4eb8 100644
--- a/playground/README.md
+++ b/playground/README.md
@@ -1,4 +1,3 @@
-
 # JSLT Playground
 
 To build the playground yourself, simply do:
@@ -15,5 +14,12 @@ To run it, give this command:
 java -cp playground/build/libs/playground-0.0.1-all.jar no.priv.garshol.jslt.playground.PlaygroundServer 9999 &
 ```
 
+or use Docker
+
+```
+docker build -t jslt .
+docker run -p 9999:9999 jslt
+```
+
 Then go to `http://localhost:9999/jslt` and you'll have the playground
 right there.
diff --git a/playground/src/main/resources/lambda.html b/playground/src/main/resources/lambda.html
index 8453f236..8373d526 100644
--- a/playground/src/main/resources/lambda.html
+++ b/playground/src/main/resources/lambda.html
@@ -38,8 +38,8 @@
   var data = {"json" : input, "jslt" : jslt }
 
   var http = new XMLHttpRequest();
-  var url = "jslt-demo";
-  //var url = "http://localhost:9999/jslt";
+  var url = "jslt";
+
   http.open("POST", url, true);
   http.setRequestHeader("Content-type", "application/json");