diff --git a/.eslintrc.json b/.eslintrc.json
index a59acbc5b6..3dec5a3fea 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -419,17 +419,23 @@
             },
             "plugins": ["@typescript-eslint"],
             "rules": {
+                // Disable base rule to avoid conflict
                 "empty-returns/main": 0,
                 "indent": 0,
+                "func-call-spacing": 0,
+                "no-magic-numbers": 0,
+                "semi": 0,
 
                 "@typescript-eslint/adjacent-overload-signatures": 2,
                 "@typescript-eslint/array-type": 2,
+                "@typescript-eslint/await-thenable": 2,
                 "@typescript-eslint/ban-types": 2,
                 "@typescript-eslint/ban-ts-ignore": 0,
                 "@typescript-eslint/camelcase": 0,
                 "@typescript-eslint/class-name-casing": 2,
-                "@typescript-eslint/explicit-function-return-type": 2,
+                "@typescript-eslint/explicit-function-return-type": ["error", { "allowExpressions": true }],
                 "@typescript-eslint/explicit-member-accessibility": 0,
+                "@typescript-eslint/func-call-spacing": 2,
                 "@typescript-eslint/generic-type-naming": 0,
                 "@typescript-eslint/indent": 2,
                 "@typescript-eslint/interface-name-prefix": 0,
@@ -443,6 +449,7 @@
                 "@typescript-eslint/no-extraneous-class": 2,
                 "@typescript-eslint/no-for-in-array": 0,
                 "@typescript-eslint/no-inferrable-types": 2,
+                "@typescript-eslint/no-magic-numbers": 2,
                 "@typescript-eslint/no-misused-new": 2,
                 "@typescript-eslint/no-namespace": 2,
                 "@typescript-eslint/no-non-null-assertion": 0,
@@ -458,12 +465,18 @@
                 "@typescript-eslint/no-use-before-define": 2,
                 "@typescript-eslint/no-useless-constructor": 2,
                 "@typescript-eslint/no-var-requires": 0,
+                "@typescript-eslint/prefer-for-of": 0,
                 "@typescript-eslint/prefer-function-type": 0,
+                "@typescript-eslint/prefer-includes": 2,
                 "@typescript-eslint/prefer-interface": 0,
                 "@typescript-eslint/prefer-namespace-keyword": 2,
+                "@typescript-eslint/prefer-regexp-exec": 2,
+                "@typescript-eslint/prefer-string-starts-ends-with": 2,
                 "@typescript-eslint/promise-function-async": 2,
                 "@typescript-eslint/restrict-plus-operands": 0,
+                "@typescript-eslint/semi": 2,
                 "@typescript-eslint/type-annotation-spacing": 2,
+                "@typescript-eslint/unbound-method": 0,
                 "@typescript-eslint/unified-signatures": 2
             }
         }
diff --git a/package.json b/package.json
index d6f3b9c46c..cbaf718f42 100644
--- a/package.json
+++ b/package.json
@@ -57,7 +57,7 @@
     "zxcvbn": "4.4.2"
   },
   "devDependencies": {
-    "@typescript-eslint/eslint-plugin": "1.5.0",
+    "@typescript-eslint/eslint-plugin": "1.9.0",
     "@typescript-eslint/parser": "1.5.0",
     "casperjs": "casperjs/casperjs",
     "cssstyle": "0.2.29",
diff --git a/static/js/dict.ts b/static/js/dict.ts
index b628481787..0fd1e755df 100644
--- a/static/js/dict.ts
+++ b/static/js/dict.ts
@@ -4,10 +4,10 @@ import * as _ from 'underscore';
  * Implementation detail of the Dict class. `key` is `k` converted to a string,
  * in lowercase if the `fold_case` option is enabled.
  */
-type KeyValue<K, V> = { k: K; v: V }
+type KeyValue<K, V> = { k: K; v: V };
 type Items<K, V> = {
     [key: string]: KeyValue<K, V>;
-}
+};
 
 /**
  * This class primarily exists to support the fold_case option, because so many
diff --git a/yarn.lock b/yarn.lock
index 335499fbf4..901516e1fb 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -160,16 +160,26 @@
     "@types/uglify-js" "*"
     source-map "^0.6.0"
 
-"@typescript-eslint/eslint-plugin@1.5.0":
-  version "1.5.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-1.5.0.tgz#85c509bcfc2eb35f37958fa677379c80b7a8f66f"
-  integrity sha512-TZ5HRDFz6CswqBUviPX8EfS+iOoGbclYroZKT3GWGYiGScX0qo6QjHc5uuM7JN920voP2zgCkHgF5SDEVlCtjQ==
+"@typescript-eslint/eslint-plugin@1.9.0":
+  version "1.9.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-1.9.0.tgz#29d73006811bf2563b88891ceeff1c5ea9c8d9c6"
+  integrity sha512-FOgfBorxjlBGpDIw+0LaZIXRX6GEEUfzj8LXwaQIUCp+gDOvkI+1WgugJ7SmWiISqK9Vj5r8S7NDKO/LB+6X9A==
   dependencies:
-    "@typescript-eslint/parser" "1.5.0"
-    "@typescript-eslint/typescript-estree" "1.5.0"
+    "@typescript-eslint/experimental-utils" "1.9.0"
+    "@typescript-eslint/parser" "1.9.0"
+    eslint-utils "^1.3.1"
+    functional-red-black-tree "^1.0.1"
+    regexpp "^2.0.1"
     requireindex "^1.2.0"
     tsutils "^3.7.0"
 
+"@typescript-eslint/experimental-utils@1.9.0":
+  version "1.9.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/experimental-utils/-/experimental-utils-1.9.0.tgz#a92777d0c92d7bc8627abd7cdb06cdbcaf2b39e8"
+  integrity sha512-1s2dY9XxBwtS9IlSnRIlzqILPyeMly5tz1bfAmQ84Ul687xBBve5YsH5A5EKeIcGurYYqY2w6RkHETXIwnwV0A==
+  dependencies:
+    "@typescript-eslint/typescript-estree" "1.9.0"
+
 "@typescript-eslint/parser@1.5.0":
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-1.5.0.tgz#a96114d195dff2a49534e4c4850fb676f905a072"
@@ -179,6 +189,16 @@
     eslint-scope "^4.0.0"
     eslint-visitor-keys "^1.0.0"
 
+"@typescript-eslint/parser@1.9.0":
+  version "1.9.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-1.9.0.tgz#5796cbfcb9a3a5757aeb671c1ac88d7a94a95962"
+  integrity sha512-CWgC1XrQ34H/+LwAU7vY5xteZDkNqeAkeidEpJnJgkKu0yqQ3ZhQ7S+dI6MX4vmmM1TKRbOrKuXc6W0fIHhdbA==
+  dependencies:
+    "@typescript-eslint/experimental-utils" "1.9.0"
+    "@typescript-eslint/typescript-estree" "1.9.0"
+    eslint-scope "^4.0.0"
+    eslint-visitor-keys "^1.0.0"
+
 "@typescript-eslint/typescript-estree@1.5.0":
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-1.5.0.tgz#986b356ecdf5a0c3bc9889d221802149cf5dbd4e"
@@ -187,6 +207,14 @@
     lodash.unescape "4.0.1"
     semver "5.5.0"
 
+"@typescript-eslint/typescript-estree@1.9.0":
+  version "1.9.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-1.9.0.tgz#5d6d49be936e96fb0f859673480f89b070a5dd9b"
+  integrity sha512-7Eg0TEQpCkTsEwsl1lIzd6i7L3pJLQFWesV08dS87bNz0NeSjbL78gNAP1xCKaCejkds4PhpLnZkaAjx9SU8OA==
+  dependencies:
+    lodash.unescape "4.0.1"
+    semver "5.5.0"
+
 "@webassemblyjs/ast@1.4.3":
   version "1.4.3"
   resolved "https://registry.yarnpkg.com/@webassemblyjs/ast/-/ast-1.4.3.tgz#3b3f6fced944d8660273347533e6d4d315b5934a"