diff --git a/samples/spfx-adaptivecards-demo-sppals/npm-shrinkwrap.json b/samples/spfx-adaptivecards-demo-sppals/npm-shrinkwrap.json
index 4e0fe50..29ee4a2 100644
--- a/samples/spfx-adaptivecards-demo-sppals/npm-shrinkwrap.json
+++ b/samples/spfx-adaptivecards-demo-sppals/npm-shrinkwrap.json
@@ -2436,27 +2436,21 @@
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@@ -11896,6 +11890,12 @@
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@@ -11924,8 +11924,28 @@
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+              "integrity": "sha1-tjcjTT4mdetfefxlIkKoU6SMtJ8=",
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+                "json-stable-stringify": "^1.0.1"
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+          "integrity": "sha1-NJptRMU6Ud6JtAgFxdXlm0F9M0A=",
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@@ -15205,6 +15225,32 @@
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+          "integrity": "sha1-tjcjTT4mdetfefxlIkKoU6SMtJ8=",
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+            "fast-deep-equal": "^1.0.0",
+            "json-schema-traverse": "^0.3.0",
+            "json-stable-stringify": "^1.0.1"
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+          "integrity": "sha1-wFNHeBfIa1HaqFPIHgWbcz0CNhQ=",
+          "dev": true
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+          "integrity": "sha1-NJptRMU6Ud6JtAgFxdXlm0F9M0A=",
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@@ -17452,6 +17498,18 @@
         "yargs": "8.0.2"
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+          "integrity": "sha1-tjcjTT4mdetfefxlIkKoU6SMtJ8=",
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@@ -17482,6 +17540,12 @@
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@@ -17497,6 +17561,12 @@
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+          "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-0.3.1.tgz",
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diff --git a/samples/spfx-adaptivecards-demo-sppals/package.json b/samples/spfx-adaptivecards-demo-sppals/package.json
index bfbbf99..664f9e0 100644
--- a/samples/spfx-adaptivecards-demo-sppals/package.json
+++ b/samples/spfx-adaptivecards-demo-sppals/package.json
@@ -38,7 +38,7 @@
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     "@types/chai": "3.4.34",
     "@types/mocha": "2.2.38",
-    "ajv": "~5.2.2",
+    "ajv": "~6.12.3",
     "gulp": "~3.9.1"
   }
 }