diff --git a/garglk b/garglk
index 29cf918..9b4be5c 160000
--- a/garglk
+++ b/garglk
@@ -1 +1 @@
-Subproject commit 29cf9189a5bd5e0f1f3e8426bf774ae0c6389d1c
+Subproject commit 9b4be5cf52d0e4c8091491a10a813449bc7305d2
diff --git a/package.json b/package.json
index 54a9b82..e6c243b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "emglken",
-  "version": "0.3.2",
+  "version": "0.3.3",
   "description": "Glk meets Emscripten",
   "author": "Dannii Willis <curiousdannii@gmail.com>",
   "license": "GPL-2.0",
@@ -24,7 +24,7 @@
     "eslint": "^7.10.0"
   },
   "scripts": {
-    "build": "docker run --rm -t -u $(id -u):$(id -g) -v $(pwd):/src emscripten/emsdk:2.0.12 ./src/build.sh",
+    "build": "docker run --rm -t -u $(id -u):$(id -g) -v $(pwd):/src emscripten/emsdk:2.0.13 ./src/build.sh",
     "lint": "eslint bin/ src/",
     "test": "./tests/runtests.sh"
   },
diff --git a/versions.json b/versions.json
index e55c892..5c53f1e 100644
--- a/versions.json
+++ b/versions.json
@@ -1,6 +1,6 @@
 {
-	"bocfel": "1.2.0",
-	"emglken": "0.3.2",
+	"bocfel": "1.2.1",
+	"emglken": "0.3.3",
 	"git": "1.3.5",
 	"glulxe": "0.5.4",
 	"hugo": "3.1.05",