diff --git a/cmake/QtPublicWasmToolchainHelpers.cmake b/cmake/QtPublicWasmToolchainHelpers.cmake
index ea2a65bade3..ecdca052113 100644
--- a/cmake/QtPublicWasmToolchainHelpers.cmake
+++ b/cmake/QtPublicWasmToolchainHelpers.cmake
@@ -53,7 +53,7 @@ endfunction()
 
 function(__qt_internal_get_emcc_recommended_version out_var)
     # This version of Qt needs this version of emscripten.
-    set(QT_EMCC_RECOMMENDED_VERSION "3.1.56")
+    set(QT_EMCC_RECOMMENDED_VERSION "3.1.70")
     set(${out_var} "${QT_EMCC_RECOMMENDED_VERSION}" PARENT_SCOPE)
 endfunction()
 
diff --git a/mkspecs/features/wasm/emcc_ver.prf b/mkspecs/features/wasm/emcc_ver.prf
index b394ea1f518..2f801228797 100644
--- a/mkspecs/features/wasm/emcc_ver.prf
+++ b/mkspecs/features/wasm/emcc_ver.prf
@@ -1,5 +1,5 @@
 defineReplace(qtEmccRecommendedVersion) {
-    return (3.1.56)
+    return (3.1.70)
 }
 
 defineReplace(qtSystemEmccVersion) {