diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ca5ce6f1..a668ac77 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -14,7 +14,7 @@ jobs:
       - name: Setup emsdk
         uses: mymindstorm/setup-emsdk@v11
         with:
-          version: 3.0.0
+          version: 3.1.20
           actions-cache-folder: "emsdk-cache"
       - name: Install premake
         run: |
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index c9b1972f..832d4e80 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -45,7 +45,7 @@ git checkout origin/master
 cd ../../..
 ```
 
-4. Install [Emscripten](https://emscripten.org/docs/getting_started/downloads.html). We build against 3.0.0 in rive-wasm
+4. Install [Emscripten](https://emscripten.org/docs/getting_started/downloads.html). We build against 3.1.20 in rive-wasm
 5. Install [Premake5](https://premake.github.io/) and add it to your path
 
 6. `cd` back into the `js` folder and run `./build.sh` from your terminal/shell to build the latest WASM and builds for JS API's (high and low level) into the `npm/` folder. This may take some time, grab a coffee! This should finish with Webpack building the JS bundles for the high-level API packages (more on that below)
diff --git a/wasm/premake5.lua b/wasm/premake5.lua
index 54b0239e..e9069461 100644
--- a/wasm/premake5.lua
+++ b/wasm/premake5.lua
@@ -38,6 +38,7 @@ linkoptions {
             "-s NO_EXIT_RUNTIME=1", 
             "-s STRICT=1", 
             "-flto",
+            "-s DYNAMIC_EXECUTION=0",
             "-s ALLOW_MEMORY_GROWTH=1", 
             "-s DISABLE_EXCEPTION_CATCHING=1", 
             "-s WASM=1",