fix: update dependencies

package.json

@@ -13,8 +13,8 @@
     "delay": "^4.1.0",
     "es6-error": "^4.1.1",
     "get-stack-trace": "^2.0.1",
-    "iso8601-duration": "^1.1.7",
-    "pg": "^7.8.1",
+    "iso8601-duration": "^1.2.0",
+    "pg": "^7.8.2",
     "pg-connection-string": "^2.0.0",
     "pg-cursor": "^2.0.0",
     "pg-types": "^2.0.0",
@@ -31,19 +31,19 @@
     "@babel/plugin-transform-flow-strip-types": "^7.3.4",
     "@babel/preset-env": "^7.3.4",
     "@babel/register": "^7.0.0",
-    "ava": "^1.2.1",
+    "ava": "^1.3.1",
     "babel-plugin-istanbul": "^5.1.1",
     "babel-plugin-transform-export-default-name": "^2.0.4",
     "coveralls": "^3.0.3",
-    "eslint": "^5.14.1",
+    "eslint": "^5.15.1",
     "eslint-config-canonical": "^16.2.0",
     "flow-bin": "^0.94.0",
     "flow-copy-source": "^2.0.3",
     "gitdown": "^2.5.7",
     "husky": "^1.3.1",
     "nyc": "^13.3.0",
     "semantic-release": "^15.13.3",
-    "sinon": "^7.2.5"
+    "sinon": "^7.2.7"
   },
   "engines": {
     "node": ">=8.0"