diff --git a/index.js b/index.js
index 86b52d9..264c557 100644
--- a/index.js
+++ b/index.js
@@ -6,6 +6,8 @@ const run = async () => {
   try {
     const version = core.getInput('version')
     await exec(path.join(__dirname, 'install-jsonnet.sh'), version)
+
+    await exec(path.join(__dirname, 'install-sjsonnet.sh'), '0.4.3')
   } catch (error) {
     core.setFailed(`Action failed with error: ${error}`)
   }
diff --git a/install-sjsonnet.sh b/install-sjsonnet.sh
new file mode 100755
index 0000000..3c879f2
--- /dev/null
+++ b/install-sjsonnet.sh
@@ -0,0 +1,9 @@
+#!/bin/bash -ex
+SJSONNET=${SJSONNET:-sjsonnet}
+
+# Install https://github.com/databricks/sjsonnet
+version="${1:-0.4.3}"
+
+curl -L "https://github.com/databricks/sjsonnet/releases/download/${version}/sjsonnet.jar" > "$SJSONNET"
+
+chmod +x "$SJSONNET"