diff --git a/implementation-contributed/curation_logs/javascriptcore.json b/implementation-contributed/curation_logs/javascriptcore.json
index 8c13dab716..65375ace22 100644
--- a/implementation-contributed/curation_logs/javascriptcore.json
+++ b/implementation-contributed/curation_logs/javascriptcore.json
@@ -1,6 +1,6 @@
 {
-  "sourceRevisionAtLastExport": "a2f7b0c562",
-  "targetRevisionAtLastExport": "5594c916b",
+  "sourceRevisionAtLastExport": "873fa026de",
+  "targetRevisionAtLastExport": "92b6974df",
   "curatedFiles": {
     "/stress/Number-isNaN-basics.js": "DELETED_IN_TARGET",
     "/stress/Object_static_methods_Object.getOwnPropertyDescriptors-proxy.js": "DELETED_IN_TARGET",
diff --git a/implementation-contributed/javascriptcore/stress/math-pow-nan-to-zero-spec-type.js b/implementation-contributed/javascriptcore/stress/math-pow-nan-to-zero-spec-type.js
new file mode 100644
index 0000000000..24553a5342
--- /dev/null
+++ b/implementation-contributed/javascriptcore/stress/math-pow-nan-to-zero-spec-type.js
@@ -0,0 +1,21 @@
+// Verify that we have the correct speculation checks for Math.pow(NaN, 0).
+
+function func(x) {
+    return fiatInt52(Math.pow(NaN, (x > 1)));
+};
+
+noInline(func);
+
+function test(f)
+{
+    for (let i = 0; i < 10000; ++i) {
+        if (f(0) != 1)
+            throw "Wrong expected value";
+
+        if (f(1) != 1)
+            throw "Wrong expected value";
+    }
+}
+
+test(func);
+
diff --git a/implementation-contributed/javascriptcore/stress/regress-189185.js b/implementation-contributed/javascriptcore/wasm/regress/regress-189185.js
similarity index 70%
rename from implementation-contributed/javascriptcore/stress/regress-189185.js
rename to implementation-contributed/javascriptcore/wasm/regress/regress-189185.js
index 14b901e7ca..d2588ad31f 100644
--- a/implementation-contributed/javascriptcore/stress/regress-189185.js
+++ b/implementation-contributed/javascriptcore/wasm/regress/regress-189185.js
@@ -1,5 +1,4 @@
-//@ skip if $architecture == "x86"
-//@ runDefault
+//@ runWebAssembly
 // This passes if it does not crash.
 new WebAssembly.CompileError({
     valueOf() {