diff --git a/package.json b/package.json
index b0c5d5af..47c73191 100644
--- a/package.json
+++ b/package.json
@@ -69,7 +69,6 @@
     "source-map-support": "^0.5.6",
     "tslint": "^5.19.0",
     "tslint-config-prettier": "^1.13.0",
-    "tslint-immutable": "^5.5.2",
     "typescript": "~3.7",
     "webpack": "^4.12.0",
     "webpack-cli": "^3.3.8"
diff --git a/packages/faucet/src/actions/start/start.ts b/packages/faucet/src/actions/start/start.ts
index 3d2ff2f3..b98bf0aa 100644
--- a/packages/faucet/src/actions/start/start.ts
+++ b/packages/faucet/src/actions/start/start.ts
@@ -1,4 +1,3 @@
-// tslint:disable: no-object-mutation
 import { UserProfile } from "@iov/keycontrol";
 import cors = require("@koa/cors");
 import Koa from "koa";
diff --git a/packages/faucet/src/cashflow.spec.ts b/packages/faucet/src/cashflow.spec.ts
index 6cd56c28..b90f6347 100644
--- a/packages/faucet/src/cashflow.spec.ts
+++ b/packages/faucet/src/cashflow.spec.ts
@@ -1,4 +1,3 @@
-// tslint:disable: no-object-mutation
 import { TokenTicker } from "@iov/bcp";
 
 import { creditAmount, refillAmount, refillThreshold, setFractionalDigits } from "./cashflow";
diff --git a/packages/faucet/src/multichainhelpers.ts b/packages/faucet/src/multichainhelpers.ts
index a8fc46fe..57e2e554 100644
--- a/packages/faucet/src/multichainhelpers.ts
+++ b/packages/faucet/src/multichainhelpers.ts
@@ -30,7 +30,6 @@ export async function loadAccounts(
   const codec = codecImplementation();
   const addresses = identitiesOfFirstWallet(profile).map(identity => codec.identityToAddress(identity));
 
-  // tslint:disable-next-line: readonly-array
   const out: Account[] = [];
   for (const address of addresses) {
     const response = await connection.getAccount({ address: address });
@@ -104,7 +103,6 @@ export async function refill(profile: UserProfile, connection: BlockchainConnect
   const availableTokens = availableTokensFromHolder(holderAccount);
   console.info("Available tokens:", availableTokens);
 
-  // tslint:disable-next-line: readonly-array
   const jobs: SendJob[] = [];
 
   for (const token of availableTokens) {
diff --git a/tslint.json b/tslint.json
index f1c4bad8..4d803cc3 100644
--- a/tslint.json
+++ b/tslint.json
@@ -1,6 +1,6 @@
 {
   "defaultSeverity": "error",
-  "extends": ["tslint:latest", "tslint-immutable", "tslint-config-prettier"],
+  "extends": ["tslint:latest", "tslint-config-prettier"],
   "jsRules": {},
   "rules": {
     "array-type": [true, "array"],
@@ -10,21 +10,12 @@
     "deprecation": true,
     "interface-name": [true, "never-prefix"],
     "max-classes-per-file": false,
-    "no-class": false,
     "no-conditional-assignment": false,
     "no-console": [true, "log"],
-    "no-delete": true,
     "no-empty": false,
     "no-empty-interface": false,
-    "no-expression-statement": false,
     "no-floating-promises": true,
-    "no-if-statement": false,
     "no-implicit-dependencies": false,
-    "no-let": false,
-    "no-loop-statement": false,
-    "no-method-signature": true,
-    "no-mixed-interface": false,
-    "no-object-mutation": true,
     "no-parameter-reassignment": false,
     "no-unnecessary-class": [true, "allow-static-only"],
     "no-unnecessary-type-assertion": true,
@@ -34,8 +25,6 @@
     "ordered-imports": false,
     "prefer-const": true,
     "promise-function-async": true,
-    "readonly-array": true,
-    "readonly-keyword": true,
     "typedef": [true, "call-signature"],
     "variable-name": [true, "check-format", "allow-leading-underscore"]
   },
diff --git a/yarn.lock b/yarn.lock
index 80d687b2..7442bf60 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7524,13 +7524,6 @@ tslint-config-prettier@^1.13.0:
   resolved "https://registry.yarnpkg.com/tslint-config-prettier/-/tslint-config-prettier-1.18.0.tgz#75f140bde947d35d8f0d238e0ebf809d64592c37"
   integrity sha512-xPw9PgNPLG3iKRxmK7DWr+Ea/SzrvfHtjFt5LBl61gk2UBG/DB9kCXRjv+xyIU1rUtnayLeMUVJBcMX8Z17nDg==
 
-tslint-immutable@^5.5.2:
-  version "5.5.2"
-  resolved "https://registry.yarnpkg.com/tslint-immutable/-/tslint-immutable-5.5.2.tgz#57331f6100156fa7ac4503e121cd2616df5bab8a"
-  integrity sha512-+dSMhEeUyRMrBe9XcjfRXT/FmqWKXsSdxttWoDzhUFSNCg8wfXx29M/ClQ78HhmdTaK+DDQsNS3wTGpSIhOv3g==
-  dependencies:
-    tsutils "^2.28.0 || ^3.0.0"
-
 tslint@^5.19.0:
   version "5.20.1"
   resolved "https://registry.yarnpkg.com/tslint/-/tslint-5.20.1.tgz#e401e8aeda0152bc44dd07e614034f3f80c67b7d"
@@ -7555,13 +7548,6 @@ tsscmp@1.0.6:
   resolved "https://registry.yarnpkg.com/tsscmp/-/tsscmp-1.0.6.tgz#85b99583ac3589ec4bfef825b5000aa911d605eb"
   integrity sha512-LxhtAkPDTkVCMQjt2h6eBVY28KCjikZqZfMcC15YBeNjkgUpdCfBu5HoiOTDu86v6smE8yOjyEktJ8hlbANHQA==
 
-"tsutils@^2.28.0 || ^3.0.0", tsutils@^3.17.1:
-  version "3.17.1"
-  resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-3.17.1.tgz#ed719917f11ca0dee586272b2ac49e015a2dd759"
-  integrity sha512-kzeQ5B8H3w60nFY2g8cJIuH7JDpsALXySGtwGJ0p2LSjLgay3NdIpqq5SoOBe46bKDW2iq25irHCr8wjomUS2g==
-  dependencies:
-    tslib "^1.8.1"
-
 tsutils@^2.29.0:
   version "2.29.0"
   resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-2.29.0.tgz#32b488501467acbedd4b85498673a0812aca0b99"
@@ -7569,6 +7555,13 @@ tsutils@^2.29.0:
   dependencies:
     tslib "^1.8.1"
 
+tsutils@^3.17.1:
+  version "3.17.1"
+  resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-3.17.1.tgz#ed719917f11ca0dee586272b2ac49e015a2dd759"
+  integrity sha512-kzeQ5B8H3w60nFY2g8cJIuH7JDpsALXySGtwGJ0p2LSjLgay3NdIpqq5SoOBe46bKDW2iq25irHCr8wjomUS2g==
+  dependencies:
+    tslib "^1.8.1"
+
 tty-browserify@0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/tty-browserify/-/tty-browserify-0.0.0.tgz#a157ba402da24e9bf957f9aa69d524eed42901a6"