diff --git a/package-lock.json b/package-lock.json
index 71704675..74e0f00a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1657,17 +1657,17 @@
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-      "resolved": "https://registry.npmjs.org/better-ajv-errors/-/better-ajv-errors-0.5.7.tgz",
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+      "version": "0.6.7",
+      "resolved": "https://registry.npmjs.org/better-ajv-errors/-/better-ajv-errors-0.6.7.tgz",
+      "integrity": "sha512-PYgt/sCzR4aGpyNy5+ViSQ77ognMnWq7745zM+/flYO4/Yisdtp9wDQW2IKCyVYPUxQt3E/b5GBSwfhd1LPdlg==",
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         "@babel/code-frame": "^7.0.0",
         "@babel/runtime": "^7.0.0",
         "chalk": "^2.4.1",
-        "core-js": "^2.5.7",
+        "core-js": "^3.2.1",
         "json-to-ast": "^2.0.3",
         "jsonpointer": "^4.0.1",
-        "leven": "^2.1.0"
+        "leven": "^3.1.0"
       },
       "dependencies": {
         "ansi-styles": {
@@ -1689,9 +1689,14 @@
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         "core-js": {
-          "version": "2.6.5",
-          "resolved": "https://registry.npmjs.org/core-js/-/core-js-2.6.5.tgz",
-          "integrity": "sha512-klh/kDpwX8hryYL14M9w/xei6vrv6sE8gTHDG7/T/+SEovB/G4ejwcfE/CBzO6Edsu+OETZMZ3wcX/EjUkrl5A=="
+          "version": "3.6.4",
+          "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.6.4.tgz",
+          "integrity": "sha512-4paDGScNgZP2IXXilaffL9X7968RuvwlkK3xWtZRVqgd8SYNiVKRJvkFd1aqqEuPfN7E68ZHEp9hDj6lHj4Hyw=="
+        },
+        "leven": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/leven/-/leven-3.1.0.tgz",
+          "integrity": "sha512-qsda+H8jTaUaN/x5vzW2rzc+8Rw4TAQ/4KjB46IwK5VH+IlVeeeje/EoZRpiXvIqjFgK84QffqPztGI3VBLG1A=="
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@@ -2730,6 +2735,11 @@
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       "integrity": "sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc="
     },
+    "fast-safe-stringify": {
+      "version": "2.0.7",
+      "resolved": "https://registry.npmjs.org/fast-safe-stringify/-/fast-safe-stringify-2.0.7.tgz",
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+    },
     "fb-watchman": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/fb-watchman/-/fb-watchman-2.0.0.tgz",
@@ -5812,20 +5822,82 @@
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     },
     "oas-validator": {
-      "version": "3.3.0",
-      "resolved": "https://registry.npmjs.org/oas-validator/-/oas-validator-3.3.0.tgz",
-      "integrity": "sha512-/NK6X+jQd/hHmA4IpczgIHA/dj0QF9lQfTzFcoxZXbPWUOVx/NCRSrcQWNlTpnpawbuCIZ2yGwlXi218+JcMXQ==",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/oas-validator/-/oas-validator-4.0.1.tgz",
+      "integrity": "sha512-nlbhFqhP1fB02Gb92PCJEDN1TunPUWsTwlFONaHbsEKBSeNH3jH+CH/cA4W+y0xqAJHH/S55R5mIc6izD/GXQQ==",
       "requires": {
         "ajv": "^5.5.2",
-        "better-ajv-errors": "^0.5.2",
+        "better-ajv-errors": "^0.6.7",
         "call-me-maybe": "^1.0.1",
-        "oas-kit-common": "^1.0.7",
-        "oas-linter": "^3.0.1",
-        "oas-resolver": "^2.2.4",
-        "oas-schema-walker": "^1.1.2",
-        "reftools": "^1.0.7",
+        "oas-kit-common": "^1.0.8",
+        "oas-linter": "^3.1.0",
+        "oas-resolver": "^2.3.1",
+        "oas-schema-walker": "^1.1.3",
+        "reftools": "^1.1.0",
         "should": "^13.2.1",
-        "yaml": "^1.3.1"
+        "yaml": "^1.8.3"
+      },
+      "dependencies": {
+        "@babel/runtime": {
+          "version": "7.9.2",
+          "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.9.2.tgz",
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+          "requires": {
+            "regenerator-runtime": "^0.13.4"
+          }
+        },
+        "oas-kit-common": {
+          "version": "1.0.8",
+          "resolved": "https://registry.npmjs.org/oas-kit-common/-/oas-kit-common-1.0.8.tgz",
+          "integrity": "sha512-pJTS2+T0oGIwgjGpw7sIRU8RQMcUoKCDWFLdBqKB2BNmGpbBMH2sdqAaOXUg8OzonZHU0L7vfJu1mJFEiYDWOQ==",
+          "requires": {
+            "fast-safe-stringify": "^2.0.7"
+          }
+        },
+        "oas-linter": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/oas-linter/-/oas-linter-3.1.0.tgz",
+          "integrity": "sha512-Q2GD5QSmx1zFvW8RpDVIdRbR86mgpjTvO7b5XNnCSGkx96Hs7MdA/pWGctSZKNcxlbDy0c4eNSKC1dFbKGEjbg==",
+          "requires": {
+            "should": "^13.2.1",
+            "yaml": "^1.8.3"
+          }
+        },
+        "oas-resolver": {
+          "version": "2.3.1",
+          "resolved": "https://registry.npmjs.org/oas-resolver/-/oas-resolver-2.3.1.tgz",
+          "integrity": "sha512-/zT9kjC0ip+fCu5CyUn366dHNldKHUHl8U1I/jZadzdYV+xC3goPy+3BamRboMNUuTTl6vyRajj9uL6mCkfyKw==",
+          "requires": {
+            "node-fetch-h2": "^2.3.0",
+            "oas-kit-common": "^1.0.8",
+            "reftools": "^1.1.0",
+            "yaml": "^1.8.3",
+            "yargs": "^12.0.5"
+          }
+        },
+        "oas-schema-walker": {
+          "version": "1.1.3",
+          "resolved": "https://registry.npmjs.org/oas-schema-walker/-/oas-schema-walker-1.1.3.tgz",
+          "integrity": "sha512-spY1UVlewUhQs3v0ATsGySRCwVs4Uzutm9KvbwxkaitfisdJy9p51vLjaDGDV0g1xMcZIUH5f704/CwMPSZxHA=="
+        },
+        "reftools": {
+          "version": "1.1.0",
+          "resolved": "https://registry.npmjs.org/reftools/-/reftools-1.1.0.tgz",
+          "integrity": "sha512-j3tFfOg3Zf0w/TT5bA6G/URUqAmsDhDJkBQ1cQX94Tfg/I4XO3j0p4Zf+2KQU90Ks6LHrQen5+gbe4POQu+jdQ=="
+        },
+        "regenerator-runtime": {
+          "version": "0.13.5",
+          "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.13.5.tgz",
+          "integrity": "sha512-ZS5w8CpKFinUzOwW3c83oPeVXoNsrLsaCoLtJvAClH135j/R77RuymhiSErhm2lKcwSCIpmvIWSbDkIfAqKQlA=="
+        },
+        "yaml": {
+          "version": "1.8.3",
+          "resolved": "https://registry.npmjs.org/yaml/-/yaml-1.8.3.tgz",
+          "integrity": "sha512-X/v7VDnK+sxbQ2Imq4Jt2PRUsRsP7UcpSl3Llg6+NRRqWLIvxkMFYtH1FmvwNGYRKKPa+EPA4qDBlI9WVG1UKw==",
+          "requires": {
+            "@babel/runtime": "^7.8.7"
+          }
+        }
       }
     },
     "oauth-sign": {
diff --git a/package.json b/package.json
index a903bd8b..f02bb2ab 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "node-readfiles": "^0.2.0",
     "oas-linter": "^3.0.0",
     "oas-resolver": "^2.2.4",
-    "oas-validator": "^3.0.1",
+    "oas-validator": "^4.0.1",
     "redoc": "v2.0.0-rc.12",
     "yaml": "^1.5.0"
   },