diff --git a/api/package-lock.json b/api/package-lock.json
index a4f5118..33a1898 100644
--- a/api/package-lock.json
+++ b/api/package-lock.json
@@ -7,7 +7,7 @@
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@@ -101,20 +125,28 @@
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@@ -144,11 +176,16 @@
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@@ -157,31 +194,31 @@
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-      "integrity": "sha1-qk62jl17ZYuqa/alfmMMvXqT0pg=",
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-        "browserify-rsa": "^4.0.0",
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@@ -252,12 +309,12 @@
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@@ -269,11 +326,11 @@
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@@ -284,30 +341,37 @@
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         "parseurl": "~1.3.3",
-        "send": "0.17.1"
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+    "setimmediate": {
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+      "resolved": "https://registry.npmjs.org/setimmediate/-/setimmediate-1.0.5.tgz",
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-      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.1.tgz",
-      "integrity": "sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw=="
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+      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
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@@ -994,7 +1155,7 @@
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-      "integrity": "sha1-c6C0GNqrcDW/+G6EkeNjQS/CqwU=",
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@@ -1003,12 +1164,20 @@
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       "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
-      "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
+      "integrity": "sha512-OpZ3zP+jT1PI7I8nemJX4AKmAX070ZkYPVWV/AaKTJl+tXCTGyVdC1a4SL8RUQYEwk/f34ZX8UTykN68FwrqAA=="
+    },
+    "string_decoder": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
+      "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
+      "requires": {
+        "safe-buffer": "~5.2.0"
+      }
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     "strip-hex-prefix": {
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-      "integrity": "sha1-DF8VX+8RUTczd96du1iNoFUA428=",
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@@ -1019,9 +1188,9 @@
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-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
-      "integrity": "sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw=="
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
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@@ -1033,29 +1202,34 @@
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-      "resolved": "https://registry.npmjs.org/unorm/-/unorm-1.5.0.tgz",
-      "integrity": "sha512-sMfSWoiRaXXeDZSXC+YRZ23H4xchQpwxjpw1tmfR+kgbBCaOgln4NI0LXejJIhnBuKINrB3WRn+ZI8IWssirVw=="
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/unorm/-/unorm-1.6.0.tgz",
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     "unpipe": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
-      "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
+      "integrity": "sha512-pjy2bYhSsufwWlKwPc+l3cN7+wuJlK6uz0YdJEOlQDbl6jo/YlPi4mb8agUkVC8BF7V8NuzeyPNqRksA3hztKQ=="
+    },
+    "util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw=="
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-      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
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     "uuid": {
-      "version": "3.3.2",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
-      "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA=="
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.4.0.tgz",
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       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
-      "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
+      "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg=="
     }
   }
 }
diff --git a/api/package.json b/api/package.json
index 7b15803..b5cb330 100644
--- a/api/package.json
+++ b/api/package.json
@@ -11,7 +11,7 @@
   "license": "ISC",
   "dependencies": {
     "axios": "^0.19.0",
-    "express": "^4.17.1",
+    "express": "^4.17.3",
     "irisnet-crypto": "git+https://github.com/aakatev/irisnet-crypto.git"
   }
 }