diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index eeded92ad..9f7c6eb72 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -7,10 +7,22 @@ jobs:
 - job: Linux
   pool:
     vmImage: 'ubuntu-16.04'
+  strategy:
+    matrix:
+      node_8_x:
+        node_version: 8.x
+      node_9_x:
+        node_version: 9.x
+      node_10_x:
+        node_version: 10.x
+      node_11_x:
+        node_version: 11.x
+      node_12_x:
+        node_version: 12.x
   steps:
   - task: NodeTool@0
     inputs:
-      versionSpec: '8.x'
+      versionSpec: $(node_version)
     displayName: 'Install Node.js'
   - script: |
       npm i
@@ -25,10 +37,22 @@ jobs:
 - job: macOS
   pool:
     vmImage: 'xcode9-macos10.13'
+  strategy:
+    matrix:
+      node_8_x:
+        node_version: 8.x
+      node_9_x:
+        node_version: 9.x
+      node_10_x:
+        node_version: 10.x
+      node_11_x:
+        node_version: 11.x
+      node_12_x:
+        node_version: 12.x
   steps:
   - task: NodeTool@0
     inputs:
-      versionSpec: '8.x'
+      versionSpec: $(node_version)
     displayName: 'Install Node.js'
   - script: |
       npm i
@@ -43,10 +67,22 @@ jobs:
 - job: Windows
   pool:
     vmImage: 'vs2017-win2016'
+  strategy:
+    matrix:
+      node_8_x:
+        node_version: 8.x
+      node_9_x:
+        node_version: 9.x
+      node_10_x:
+        node_version: 10.x
+      node_11_x:
+        node_version: 11.x
+      node_12_x:
+        node_version: 12.x
   steps:
   - task: NodeTool@0
     inputs:
-      versionSpec: '8.x'
+      versionSpec: $(node_version)
     displayName: 'Install Node.js'
   - script: |
       npm i
diff --git a/src/win/conpty.cc b/src/win/conpty.cc
index cf8882a71..9a3f9ec75 100644
--- a/src/win/conpty.cc
+++ b/src/win/conpty.cc
@@ -180,9 +180,9 @@ static NAN_METHOD(PtyStartProcess) {
   const std::wstring filename(path_util::to_wstring(Nan::Utf8String(info[0])));
   const SHORT cols = info[1]->Uint32Value(Nan::GetCurrentContext()).FromJust();
   const SHORT rows = info[2]->Uint32Value(Nan::GetCurrentContext()).FromJust();
-  const bool debug = info[3]->ToBoolean(Nan::GetCurrentContext()).ToLocalChecked()->IsTrue();
+  const bool debug = Nan::To<bool>(info[3]).FromJust();
   const std::wstring pipeName(path_util::to_wstring(Nan::Utf8String(info[4])));
-  const bool inheritCursor = info[5]->ToBoolean(Nan::GetCurrentContext()).ToLocalChecked()->IsTrue();
+  const bool inheritCursor = Nan::To<bool>(info[5]).FromJust();
 
   // use environment 'Path' variable to determine location of
   // the relative path that we have recieved (e.g cmd.exe)
diff --git a/src/win/winpty.cc b/src/win/winpty.cc
index 614938a35..b054dee21 100644
--- a/src/win/winpty.cc
+++ b/src/win/winpty.cc
@@ -167,7 +167,7 @@ static NAN_METHOD(PtyStartProcess) {
 
   int cols = info[4]->Int32Value(Nan::GetCurrentContext()).FromJust();
   int rows = info[5]->Int32Value(Nan::GetCurrentContext()).FromJust();
-  bool debug = info[6]->ToBoolean(Nan::GetCurrentContext()).ToLocalChecked()->IsTrue();
+  bool debug = Nan::To<bool>(info[6]).FromJust();
 
   // Enable/disable debugging
   SetEnvironmentVariable(WINPTY_DBG_VARIABLE, debug ? "1" : NULL); // NULL = deletes variable