diff --git a/package-lock.json b/package-lock.json
index 1ea2e03..99f69be 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -670,10 +670,11 @@
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@@ -10590,18 +10695,45 @@
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-        "ms": "2.1.1",
+        "ms": "2.1.3",
         "on-finished": "~2.3.0",
         "range-parser": "~1.2.1",
         "statuses": "~1.5.0"
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       "dependencies": {
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+          "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.8.1.tgz",
+          "integrity": "sha512-Kpk9Sm7NmI+RHhnj6OIWDI1d6fIoFAtFt9RLaTMRlg/8w49juAStsrBgp0Dp4OdxdVbRIeKhtCUvoi/RuAhO4g==",
+          "requires": {
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+            "inherits": "2.0.4",
+            "setprototypeof": "1.2.0",
+            "statuses": ">= 1.5.0 < 2",
+            "toidentifier": "1.0.1"
+          }
+        },
+        "inherits": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+        },
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-          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.1.tgz",
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+          "version": "2.1.3",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
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+        },
+        "setprototypeof": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
+          "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw=="
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+        "toidentifier": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
+          "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA=="
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@@ -10645,14 +10777,14 @@
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-      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.14.1.tgz",
-      "integrity": "sha512-JMrvUwE54emCYWlTI+hGrGv5I8dEwmco/00EvkzIIsR7MqrHonbD9pO2MOfFnpFntl7ecpZs+3mW+XbQZu9QCg==",
+      "version": "1.14.2",
+      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.14.2.tgz",
+      "integrity": "sha512-+TMNA9AFxUEGuC0z2mevogSnn9MXKb4fa7ngeRMJaaGv8vTwnIEkKi+QGvPt33HSnf8pRS+WGM0EbMtCJLKMBQ==",
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         "encodeurl": "~1.0.2",
         "escape-html": "~1.0.3",
         "parseurl": "~1.3.3",
-        "send": "0.17.1"
+        "send": "0.17.2"
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@@ -12659,7 +12791,7 @@
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-      "integrity": "sha1-f1Nj8Ff2WSxVlfALyAon9c7B8O8=",
+      "integrity": "sha512-gCq3NDI2P35B2n6t76YJuOp7d6cN/C7Rt0577l91wllh0sY9ZBuw9KaSGqH/b0hzn3CWWJbpbW0W0WvQ1H/Q7g==",
       "requires": {
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@@ -12713,7 +12845,7 @@
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       "resolved": "https://registry.npmjs.org/stream-transform/-/stream-transform-0.1.2.tgz",
-      "integrity": "sha1-fY5rTgOsR4F3j4x5UXUBv7B2Kp8="
+      "integrity": "sha512-3HXId/0W8sktQnQM6rOZf2LuDDMbakMgAjpViLk758/h0br+iGqZFFfUxxJSqEvGvT742PyFr4v/TBXUtowdCg=="
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@@ -13667,7 +13799,7 @@
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-      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
+      "integrity": "sha512-pMZTvIkT1d+TFGvDOqodOclx0QWkkgi6Tdoa8gC8ffGAAqz9pzPTZWAybbsHHoED/ztMtkv/VoYTYyShUn81hA=="
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@@ -14059,7 +14191,7 @@
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-      "integrity": "sha1-0lciS+g5PqrL+DfvIn/Y7CWzaIg=",
+      "integrity": "sha512-rJ/+/UzYCSlFNuAzGuRyYgkH2G5agdX1UQn4+5siYw9pkNC3Hu/grYNDx/dqYLreeSjnY5oKg74CMBKxJHSg6Q==",
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@@ -14067,7 +14199,7 @@
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           "resolved": "https://registry.npmjs.org/sax/-/sax-1.1.6.tgz",
-          "integrity": "sha1-XWFr6KXmB9VOEUr65Vt+ry/MMkA="
+          "integrity": "sha512-8zci48uUQyfqynGDSkUMD7FCJB96hwLnlZOXlgs1l3TX+LW27t3psSWKUxC0fxVgA86i8tL4NwGcY1h/6t3ESg=="
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diff --git a/package.json b/package.json
index 00f3ea9..8a70311 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
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     "config": "^3.3.6",
     "cors": "^2.8.5",
-    "express": "^4.17.1",
+    "express": "^4.17.3",
     "fhir-mapper": "^2.0.0",
     "fhir.js": "git+https://github.com/FHIR/fhir.js.git",
     "fhirpath": "0.10.1",