diff --git a/provider-bridge-shared/eip-1193.ts b/provider-bridge-shared/eip-1193.ts
index c568c64fc5..af1fbcc57a 100644
--- a/provider-bridge-shared/eip-1193.ts
+++ b/provider-bridge-shared/eip-1193.ts
@@ -48,7 +48,7 @@ export class EIP1193Error extends Error {
     super(eip1193Error.message)
   }
 
-  toJSON() {
+  toJSON(): unknown {
     return this.eip1193Error
   }
 }
diff --git a/provider-bridge-shared/runtime-typechecks.ts b/provider-bridge-shared/runtime-typechecks.ts
index 38bbc16de3..2ca2909190 100644
--- a/provider-bridge-shared/runtime-typechecks.ts
+++ b/provider-bridge-shared/runtime-typechecks.ts
@@ -7,7 +7,7 @@ import {
   TallyAccountPayload,
 } from "./types"
 
-export function getType(arg: unknown) {
+export function getType(arg: unknown): string {
   return Object.prototype.toString.call(arg).slice("[object ".length, -1)
 }
 
diff --git a/window-provider/index.ts b/window-provider/index.ts
index 753f9247a8..bdb8a29bea 100644
--- a/window-provider/index.ts
+++ b/window-provider/index.ts
@@ -77,7 +77,7 @@ export default class TallyWindowProvider extends EventEmitter {
   }
 
   // deprecated EIP-1193 method
-  async enable() {
+  async enable(): Promise<unknown> {
     return this.request({ method: "eth_requestAccounts" })
   }
 
@@ -207,7 +207,7 @@ export default class TallyWindowProvider extends EventEmitter {
     })
   }
 
-  handleAddressChange(address: Array<string>) {
+  handleAddressChange(address: Array<string>): void {
     if (this.selectedAddress !== address[0]) {
       // eslint-disable-next-line prefer-destructuring
       this.selectedAddress = address[0]