diff --git a/coin/provisioning/common/unix/emsdk.sh b/coin/provisioning/common/unix/emsdk.sh
index 580f966f..b85105b5 100755
--- a/coin/provisioning/common/unix/emsdk.sh
+++ b/coin/provisioning/common/unix/emsdk.sh
@@ -8,15 +8,15 @@ source "${BASH_SOURCE%/*}/SetEnvVar.sh"
 # shellcheck source=./DownloadURL.sh
 source "${BASH_SOURCE%/*}/DownloadURL.sh"
 
-version="3.1.50"
+version="3.1.56"
 versionNode="v16.20.0"
 tarBallVersion="${version//./_}"
 if uname -a |grep -q Darwin; then
     tarBallPackage="emsdk_macos_${tarBallVersion}.tar.gz"
-    sha="c12169ec8d22fc7a9ef1ba98027435bdf3b72729"
+    sha="24c49db971da4fd7c68f6b71984c3d7775fdfb84"
 else
     tarBallPackage="emsdk_linux_${tarBallVersion}.tar.gz"
-    sha="5d81a8f1ddcb8d74c70ba5608efd4266c857944a"
+    sha="410c93bb2ab3b244190c2cb5f0ff1ce5d6ac4eb5"
 fi
 cacheUrl="https://ci-files01-hki.ci.qt.io/input/emsdk/${tarBallPackage}"
 target="/tmp/${tarBallPackage}"
diff --git a/coin/provisioning/common/windows/emsdk.ps1 b/coin/provisioning/common/windows/emsdk.ps1
index e1b92fd3..b0870e8d 100644
--- a/coin/provisioning/common/windows/emsdk.ps1
+++ b/coin/provisioning/common/windows/emsdk.ps1
@@ -5,11 +5,11 @@
 
 # This script will install emscripten needed by WebAssembly
 
-$version = "3.1.50"
+$version = "3.1.56"
 $zipVersion = $version -replace '\.', "_"
 $temp = "$env:tmp"
 $cacheUrl = "https://ci-files01-hki.ci.qt.io/input/emsdk/emsdk_windows_${zipVersion}.zip"
-$sha = "40dc636688166ecdb476da40d02c491ee5032f7b"
+$sha = "ab376d218f1a66302c36770977948f74f0576a42"
 
 # Make sure python is in the path
 Prepend-Path "C:\Python27"