diff --git a/package-lock.json b/package-lock.json
index a15b57d0..3f193952 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -27,7 +27,7 @@
         "express": "^4.17.1",
         "istanbul": "^0.4.5",
         "keygrip": "^1.0.1",
-        "koa": "^1.2.4",
+        "koa": "^3.0.1",
         "koa-generic-session": "^1.11.5",
         "mocha": "^6.2.0",
         "supertest": "^4.0.2"
@@ -613,12 +613,6 @@
         "node": ">=4"
       }
     },
-    "node_modules/any-promise": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/any-promise/-/any-promise-1.3.0.tgz",
-      "integrity": "sha512-7UvmKalWRt1wgjL1RrGxoSJW/0QZFIegpeGvZG9kjp8vrRu55XTHbwnqq2GpXm9uLbcuhxm3IqX9OB4MZR1b2A==",
-      "dev": true
-    },
     "node_modules/argparse": {
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
@@ -933,16 +927,6 @@
         "node": ">=6"
       }
     },
-    "node_modules/co": {
-      "version": "4.6.0",
-      "resolved": "https://registry.npmjs.org/co/-/co-4.6.0.tgz",
-      "integrity": "sha512-QVb0dM5HvG+uaxitm8wONl7jltx8dqhfU33DcqtOZcLSVIKSDDLDi7+0LbAKiyI8hD9u42m2YxXSkMGWThaecQ==",
-      "dev": true,
-      "engines": {
-        "iojs": ">= 1.0.0",
-        "node": ">= 0.12.0"
-      }
-    },
     "node_modules/color-convert": {
       "version": "1.9.3",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.3.tgz",
@@ -976,16 +960,6 @@
       "integrity": "sha512-Rd3se6QB+sO1TwqZjscQrurpEPIfO0/yYnSin6Q/rD3mOutHvUrCAhJub3r90uNb+SESBuE0QYoB90YdfatsRg==",
       "dev": true
     },
-    "node_modules/composition": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/composition/-/composition-2.3.0.tgz",
-      "integrity": "sha512-b2wTferUuej6qDfrwPnM6KNd6MHSA1q0/aatvJhUmH2/kUM5wsn4t8sc5vj0NECwsLbAM+H4WitN4d2uL0pIRg==",
-      "dev": true,
-      "dependencies": {
-        "any-promise": "^1.1.0",
-        "co": "^4.0.2"
-      }
-    },
     "node_modules/concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
@@ -1291,12 +1265,6 @@
         "node": ">=8.6"
       }
     },
-    "node_modules/error-inject": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/error-inject/-/error-inject-1.0.0.tgz",
-      "integrity": "sha512-JM8N6PytDbmIYm1IhPWlo8vr3NtfjhDY/1MhD/a5b/aad/USE8a0+NsqE9d5n+GVGmuNkPQWm4bFQWv18d8tMg==",
-      "dev": true
-    },
     "node_modules/es-abstract": {
       "version": "1.21.1",
       "resolved": "https://registry.npmjs.org/es-abstract/-/es-abstract-1.21.1.tgz",
@@ -2612,45 +2580,41 @@
       }
     },
     "node_modules/koa": {
-      "version": "1.7.1",
-      "resolved": "https://registry.npmjs.org/koa/-/koa-1.7.1.tgz",
-      "integrity": "sha512-OWunovXTG5xliG4iVQJ2YAGa7tSDHvJiRvjEEy5WMBpkFw/O54WneFB+efsCxJoT3pRdNapSZSMvvs4bUzbkIg==",
-      "dev": true,
-      "dependencies": {
-        "accepts": "^1.2.2",
-        "co": "^4.4.0",
-        "composition": "^2.1.1",
-        "content-disposition": "~0.5.0",
-        "content-type": "^1.0.0",
-        "cookies": "~0.8.0",
-        "debug": "^2.6.9",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/koa/-/koa-3.0.1.tgz",
+      "integrity": "sha512-oDxVkRwPOHhGlxKIDiDB2h+/l05QPtefD7nSqRgDfZt8P+QVYFWjfeK8jANf5O2YXjk8egd7KntvXKYx82wOag==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "accepts": "^1.3.8",
+        "content-disposition": "~0.5.4",
+        "content-type": "^1.0.5",
+        "cookies": "~0.9.1",
         "delegates": "^1.0.0",
-        "destroy": "^1.0.3",
-        "error-inject": "~1.0.0",
-        "escape-html": "~1.0.1",
-        "fresh": "^0.5.2",
-        "http-assert": "^1.1.0",
-        "http-errors": "^1.2.8",
-        "koa-compose": "^2.3.0",
-        "koa-is-json": "^1.0.0",
-        "mime-types": "^2.0.7",
-        "on-finished": "^2.1.0",
-        "only": "0.0.2",
-        "parseurl": "^1.3.0",
-        "statuses": "^1.2.0",
-        "type-is": "^1.5.5",
-        "vary": "^1.0.0"
-      },
-      "engines": {
-        "iojs": ">= 1.0.0",
-        "node": ">= 0.12.0"
+        "destroy": "^1.2.0",
+        "encodeurl": "^2.0.0",
+        "escape-html": "^1.0.3",
+        "fresh": "~0.5.2",
+        "http-assert": "^1.5.0",
+        "http-errors": "^2.0.0",
+        "koa-compose": "^4.1.0",
+        "mime-types": "^3.0.1",
+        "on-finished": "^2.4.1",
+        "parseurl": "^1.3.3",
+        "statuses": "^2.0.1",
+        "type-is": "^2.0.1",
+        "vary": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 18"
       }
     },
     "node_modules/koa-compose": {
-      "version": "2.5.1",
-      "resolved": "https://registry.npmjs.org/koa-compose/-/koa-compose-2.5.1.tgz",
-      "integrity": "sha512-bOGNe+7ZqVVCnGNej7qP8uJ+6ugiGLgpYgVnoj6KJAR8+rH0WzktzBXrRk/eHWisEYUa9I8ess0ROiVDfFXIOw==",
-      "dev": true
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/koa-compose/-/koa-compose-4.1.0.tgz",
+      "integrity": "sha512-8ODW8TrDuMYvXRwra/Kh7/rJo9BtOfPc6qO8eAfC80CnCvSjSl0bkRM24X6/XBBEyj0v1nRUQ1LyOy3dbqOWXw==",
+      "dev": true,
+      "license": "MIT"
     },
     "node_modules/koa-generic-session": {
       "version": "1.11.7",
@@ -2677,70 +2641,50 @@
         "ms": "^2.1.1"
       }
     },
-    "node_modules/koa-is-json": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/koa-is-json/-/koa-is-json-1.0.0.tgz",
-      "integrity": "sha512-+97CtHAlWDx0ndt0J8y3P12EWLwTLMXIfMnYDev3wOTwH/RpBGMlfn4bDXlMEg1u73K6XRE9BbUp+5ZAYoRYWw==",
-      "dev": true
-    },
-    "node_modules/koa/node_modules/cookies": {
-      "version": "0.8.0",
-      "resolved": "https://registry.npmjs.org/cookies/-/cookies-0.8.0.tgz",
-      "integrity": "sha512-8aPsApQfebXnuI+537McwYsDtjVxGm8gTIzQI3FDW6t5t/DAhERxtnbEPN/8RX+uZthoz4eCOgloXaE5cYyNow==",
+    "node_modules/koa/node_modules/media-typer": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-1.1.0.tgz",
+      "integrity": "sha512-aisnrDP4GNe06UcKFnV5bfMNPBUw4jsLGaWwWfnH3v02GnBuXX2MCVn5RbrWo0j3pczUilYblq7fQ7Nw2t5XKw==",
       "dev": true,
-      "dependencies": {
-        "depd": "~2.0.0",
-        "keygrip": "~1.1.0"
-      },
+      "license": "MIT",
       "engines": {
         "node": ">= 0.8"
       }
     },
-    "node_modules/koa/node_modules/cookies/node_modules/depd": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
-      "integrity": "sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw==",
+    "node_modules/koa/node_modules/mime-db": {
+      "version": "1.54.0",
+      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.54.0.tgz",
+      "integrity": "sha512-aU5EJuIN2WDemCcAp2vFBfp/m4EAhWJnUNSSw0ixs7/kXbd6Pg64EmwJkNdFhB8aWt1sH2CTXrLxo/iAGV3oPQ==",
       "dev": true,
+      "license": "MIT",
       "engines": {
-        "node": ">= 0.8"
-      }
-    },
-    "node_modules/koa/node_modules/debug": {
-      "version": "2.6.9",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
-      "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
-      "dev": true,
-      "dependencies": {
-        "ms": "2.0.0"
+        "node": ">= 0.6"
       }
     },
-    "node_modules/koa/node_modules/http-errors": {
-      "version": "1.8.1",
-      "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.8.1.tgz",
-      "integrity": "sha512-Kpk9Sm7NmI+RHhnj6OIWDI1d6fIoFAtFt9RLaTMRlg/8w49juAStsrBgp0Dp4OdxdVbRIeKhtCUvoi/RuAhO4g==",
+    "node_modules/koa/node_modules/mime-types": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-3.0.1.tgz",
+      "integrity": "sha512-xRc4oEhT6eaBpU1XF7AjpOFD+xQmXNB5OVKwp4tqCuBpHLS/ZbBDrc07mYTDqVMg6PfxUjjNp85O6Cd2Z/5HWA==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
-        "depd": "~1.1.2",
-        "inherits": "2.0.4",
-        "setprototypeof": "1.2.0",
-        "statuses": ">= 1.5.0 < 2",
-        "toidentifier": "1.0.1"
+        "mime-db": "^1.54.0"
       },
       "engines": {
         "node": ">= 0.6"
       }
     },
-    "node_modules/koa/node_modules/ms": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
-      "integrity": "sha512-Tpp60P6IUJDTuOq/5Z8cdskzJujfwqfOTkrwIwj7IRISpnkJnT6SyJ4PCPnGMoFjC9ddhal5KVIYtAt97ix05A==",
-      "dev": true
-    },
-    "node_modules/koa/node_modules/statuses": {
-      "version": "1.5.0",
-      "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
-      "integrity": "sha512-OpZ3zP+jT1PI7I8nemJX4AKmAX070ZkYPVWV/AaKTJl+tXCTGyVdC1a4SL8RUQYEwk/f34ZX8UTykN68FwrqAA==",
+    "node_modules/koa/node_modules/type-is": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-2.0.1.tgz",
+      "integrity": "sha512-OZs6gsjF4vMp32qrCbiVSkrFmXtG/AZhY3t0iAMrMBiAZyV9oALtXO8hsrHbMXF9x6L3grlFuwW2oAz7cav+Gw==",
       "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "content-type": "^1.0.5",
+        "media-typer": "^1.1.0",
+        "mime-types": "^3.0.0"
+      },
       "engines": {
         "node": ">= 0.6"
       }
@@ -3283,12 +3227,6 @@
         "wrappy": "1"
       }
     },
-    "node_modules/only": {
-      "version": "0.0.2",
-      "resolved": "https://registry.npmjs.org/only/-/only-0.0.2.tgz",
-      "integrity": "sha512-Fvw+Jemq5fjjyWz6CpKx6w9s7xxqo3+JCyM0WXWeCSOboZ8ABkyvP8ID4CZuChA/wxSx+XSJmdOm8rGVyJ1hdQ==",
-      "dev": true
-    },
     "node_modules/optionator": {
       "version": "0.8.3",
       "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.8.3.tgz",
diff --git a/package.json b/package.json
index 5532aeea..b5020b6c 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "express": "^4.17.1",
     "istanbul": "^0.4.5",
     "keygrip": "^1.0.1",
-    "koa": "^1.2.4",
+    "koa": "^3.0.1",
     "koa-generic-session": "^1.11.5",
     "mocha": "^6.2.0",
     "supertest": "^4.0.2"