diff --git a/.github/workflows/nbnet.yml b/.github/workflows/nbnet.yml
index dd90778..fc39f30 100644
--- a/.github/workflows/nbnet.yml
+++ b/.github/workflows/nbnet.yml
@@ -92,7 +92,7 @@ jobs:
       - name: Install prerequisites
         run: sudo apt-get install build-essential cmake git python2 g++ -y
       - name: Install emsdk
-        run: ./bin/github-actions/install_emsdk.sh
+        run: ./bin/github-actions/install_emsdk.sh 3.1.64
       - name: Install nbnet NPM dependencies
         run: |
           npm update
@@ -148,7 +148,7 @@ jobs:
       - name: Install prerequisites
         run: brew install cmake coreutils
       - name: Install emsdk
-        run: ./bin/github-actions/install_emsdk.sh
+        run: ./bin/github-actions/install_emsdk.sh 3.1.64
       - name: Install nbnet NPM dependencies
         run: |
           npm update
@@ -189,7 +189,7 @@ jobs:
       - name: Download and build libdatachannel
         run: ./bin/github-actions/download_and_build_libdatachannel.sh
       - name: Install emsdk
-        run: ./bin/github-actions/install_emsdk.sh
+        run: ./bin/github-actions/install_emsdk.sh 3.1.64
       - name: Install nbnet NPM dependencies
         run: |
           npm update
diff --git a/bin/github-actions/install_emsdk.sh b/bin/github-actions/install_emsdk.sh
index acec664..832c281 100755
--- a/bin/github-actions/install_emsdk.sh
+++ b/bin/github-actions/install_emsdk.sh
@@ -1,8 +1,10 @@
 #!/bin/bash
 
+emsdk_version=$1
+
 git clone https://github.com/emscripten-core/emsdk.git
 cd emsdk
-./emsdk install latest
-./emsdk activate latest
+./emsdk install $emsdk_version
+./emsdk activate $emsdk_version
 source ./emsdk_env.sh
 emcc -v # make sure emcc is available