diff --git a/bindings/profilers/heap.cc b/bindings/profilers/heap.cc
index 7c6eaad4..fa81f742 100644
--- a/bindings/profilers/heap.cc
+++ b/bindings/profilers/heap.cc
@@ -571,6 +571,9 @@ NAN_METHOD(HeapProfiler::GetAllocationProfile) {
   auto isolate = info.GetIsolate();
   std::unique_ptr<v8::AllocationProfile> profile(
       isolate->GetHeapProfiler()->GetAllocationProfile());
+  if (!profile) {
+    return Nan::ThrowError("Heap profiler is not enabled.");
+  }
   v8::AllocationProfile::Node* root = profile->GetRootNode();
   auto state = PerIsolateData::For(isolate)->GetHeapProfilerState();
   if (state) {
diff --git a/bindings/profilers/wall.cc b/bindings/profilers/wall.cc
index 11564677..80be444e 100644
--- a/bindings/profilers/wall.cc
+++ b/bindings/profilers/wall.cc
@@ -396,7 +396,7 @@ void SignalHandler::HandleProfilerSignal(int sig,
     return;
   }
   auto isolate = Isolate::GetCurrent();
-  if (!isolate || isolate->IsDead()) {
+  if (!isolate) {
     return;
   }
   WallProfiler* prof = g_profilers.GetProfiler(isolate);
diff --git a/package-lock.json b/package-lock.json
index 7c42b2fe..c84ba0f7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@datadog/pprof",
-  "version": "5.13.1",
+  "version": "5.13.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@datadog/pprof",
-      "version": "5.13.1",
+      "version": "5.13.2",
       "hasInstallScript": true,
       "license": "Apache-2.0",
       "dependencies": {
diff --git a/package.json b/package.json
index 5cb4e842..50ddf003 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@datadog/pprof",
-  "version": "5.13.1",
+  "version": "5.13.2",
   "description": "pprof support for Node.js",
   "repository": {
     "type": "git",