diff --git a/mkspecs/features/wasm/wasm.prf b/mkspecs/features/wasm/wasm.prf
index a257f5f5cb5..4bbba8c2aa6 100644
--- a/mkspecs/features/wasm/wasm.prf
+++ b/mkspecs/features/wasm/wasm.prf
@@ -50,11 +50,7 @@ exists($$QMAKE_QT_CONFIG) {
     }
     EMCC_LFLAGS += -s INITIAL_MEMORY=$$INITIAL_MEMORY
     isEmpty(QT_WASM_MAXIMUM_MEMORY) {
-        qtConfig(wasm-jspi) {
-            MAXIMUM_MEMORY = 2GB # Avoid triggering Emscripten bug #23834
-        } else {
-            MAXIMUM_MEMORY = 4GB # 32-bit max
-        }
+        MAXIMUM_MEMORY = 4GB # 32-bit max
     } else {
         MAXIMUM_MEMORY = $$QT_WASM_MAXIMUM_MEMORY
     }
diff --git a/src/corelib/Qt6WasmMacros.cmake b/src/corelib/Qt6WasmMacros.cmake
index eae356679bd..69de55cf57f 100644
--- a/src/corelib/Qt6WasmMacros.cmake
+++ b/src/corelib/Qt6WasmMacros.cmake
@@ -121,12 +121,7 @@ function(_qt_internal_wasm_add_target_helpers target)
         if(_tmp_maximumMemory)
             set(QT_WASM_MAXIMUM_MEMORY "${_tmp_maximumMemory}")
         elseif(NOT DEFINED QT_WASM_MAXIMUM_MEMORY)
-            if(QT_FEATURE_wasm_jspi)
-                # Work around Emscripten >2GB and JSPI compatibility issue.
-                set(QT_WASM_MAXIMUM_MEMORY "2GB")
-            else()
-                set(QT_WASM_MAXIMUM_MEMORY "4GB")
-            endif()
+            set(QT_WASM_MAXIMUM_MEMORY "4GB")
         endif()
         target_link_options("${target}" PRIVATE "SHELL:-s MAXIMUM_MEMORY=${QT_WASM_MAXIMUM_MEMORY}")