diff --git a/.github/codecov.yml b/.github/codecov.yml
index cb06b78f0..6fe451a7f 100644
--- a/.github/codecov.yml
+++ b/.github/codecov.yml
@@ -8,4 +8,4 @@ coverage:
       default:
         informational: true
 ignore:
-  - "**/*.tsx"
\ No newline at end of file
+  - "**/*.tsx"
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index df4d15b35..d202a332d 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -1,6 +1,5 @@
 version: 2
 updates:
-
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index af770d266..d7057919f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -38,4 +38,4 @@ jobs:
         uses: codecov/codecov-action@v4
         with:
           name: ${{ matrix.os }}
-          files: cov.lcov
\ No newline at end of file
+          files: cov.lcov
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index dec0be6d3..fe36061d4 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -31,4 +31,4 @@ jobs:
         uses: denoland/deployctl@v1
         with:
           project: saaskit # 📝 Update the deploy project name if necessary
-          entrypoint: ./main.ts # 📝 Update the entrypoint if necessary
\ No newline at end of file
+          entrypoint: ./main.ts # 📝 Update the entrypoint if necessary
diff --git a/docker-compose.yml b/docker-compose.yml
index e5748edf9..066e5451c 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,4 +1,4 @@
-version: '3'
+version: "3"
 
 services:
   web:
@@ -13,4 +13,4 @@ services:
       - STRIPE_WEBHOOK_SECRET=${STRIPE_WEBHOOK_SECRET}
       - STRIPE_PREMIUM_PLAN_PRICE_ID=${STRIPE_PREMIUM_PLAN_PRICE_ID}
     ports:
-      - "8000:8000"
\ No newline at end of file
+      - "8000:8000"
diff --git a/e2e_test.ts b/e2e_test.ts
index 7ac8022f0..445d69dc4 100644
--- a/e2e_test.ts
+++ b/e2e_test.ts
@@ -149,7 +149,7 @@ Deno.test("[e2e] GET /callback", async (test) => {
     };
     const stripeRespBody: Partial<Stripe.Response<Stripe.Customer>> = { id };
     const fetchStub = stub(
-      window,
+      globalThis,
       "fetch",
       returnsNext([
         Promise.resolve(Response.json(githubRespBody)),
@@ -187,7 +187,7 @@ Deno.test("[e2e] GET /callback", async (test) => {
     };
     const stripeRespBody: Partial<Stripe.Response<Stripe.Customer>> = { id };
     const fetchStub = stub(
-      window,
+      globalThis,
       "fetch",
       returnsNext([
         Promise.resolve(Response.json(githubRespBody)),
@@ -881,6 +881,9 @@ Deno.test("[e2e] GET /account/upgrade", async (test) => {
   await createUser(user);
 
   await test.step("serves internal server error response if the `STRIPE_PREMIUM_PLAN_PRICE_ID` environment variable is not set", async () => {
+    // Suppress the error message thrown by the handler
+    const stubbedError = stub(console, "error");
+
     setupEnv(
       { "STRIPE_PREMIUM_PLAN_PRICE_ID": null },
     );
@@ -893,6 +896,8 @@ Deno.test("[e2e] GET /account/upgrade", async (test) => {
 
     assertEquals(resp.status, STATUS_CODE.InternalServerError);
     assertHtml(resp);
+
+    stubbedError.restore();
   });
 
   await test.step("serves not found response if Stripe is disabled", async () => {
diff --git a/islands/ItemsList.tsx b/islands/ItemsList.tsx
index f5e3dbca8..dd26cf781 100644
--- a/islands/ItemsList.tsx
+++ b/islands/ItemsList.tsx
@@ -146,7 +146,7 @@ export default function ItemsList(props: ItemsListProps) {
       itemsSig.value = [...itemsSig.value, ...values];
       cursorSig.value = cursor;
     } catch (error) {
-      console.error(error.message);
+      console.error((error as Error).message);
     } finally {
       isLoadingSig.value = false;
     }
diff --git a/islands/UsersTable.tsx b/islands/UsersTable.tsx
index 35aca107b..7587fed7b 100644
--- a/islands/UsersTable.tsx
+++ b/islands/UsersTable.tsx
@@ -58,7 +58,7 @@ export default function UsersTable(props: UsersTableProps) {
       usersSig.value = [...usersSig.value, ...values];
       cursorSig.value = cursor;
     } catch (error) {
-      console.log(error.message);
+      console.log((error as Error).message);
     } finally {
       isLoadingSig.value = false;
     }
diff --git a/plugins/blog/routes/blog/[slug].tsx b/plugins/blog/routes/blog/[slug].tsx
index 55c01b9cf..5862eb475 100644
--- a/plugins/blog/routes/blog/[slug].tsx
+++ b/plugins/blog/routes/blog/[slug].tsx
@@ -1,6 +1,6 @@
 // Copyright 2023-2024 the Deno authors. All rights reserved. MIT license.
 import { defineRoute } from "$fresh/server.ts";
-import { CSS, render } from "https://deno.land/x/gfm@0.2.5/mod.ts";
+import { CSS, render } from "jsr:@deno/gfm";
 import { getPost } from "../../utils/posts.ts";
 import Head from "@/components/Head.tsx";
 import Share from "../../components/Share.tsx";
diff --git a/plugins/error_handling.ts b/plugins/error_handling.ts
index 29e3cd36d..9a2b1524c 100644
--- a/plugins/error_handling.ts
+++ b/plugins/error_handling.ts
@@ -47,8 +47,8 @@ export default {
           try {
             return await ctx.next();
           } catch (error) {
-            const status = toErrorStatus(error);
-            return new Response(error.message, {
+            const status = toErrorStatus(error as Error);
+            return new Response((error as Error).message, {
               statusText: STATUS_TEXT[status],
               status,
             });
diff --git a/routes/api/stripe-webhooks.ts b/routes/api/stripe-webhooks.ts
index e599ae42a..d915bf70f 100644
--- a/routes/api/stripe-webhooks.ts
+++ b/routes/api/stripe-webhooks.ts
@@ -41,7 +41,7 @@ export const handler: Handlers = {
         cryptoProvider,
       );
     } catch (error) {
-      throw new BadRequestError(error.message);
+      throw new BadRequestError((error as Error).message);
     }
 
     // @ts-ignore: Property 'customer' actually does exist on type 'Object'
diff --git a/static/styles.css b/static/styles.css
index 4704e327a..f3f5e13d3 100644
--- a/static/styles.css
+++ b/static/styles.css
@@ -2,11 +2,15 @@
 @tailwind components;
 @tailwind utilities;
 .button-styles {
-  @apply px-4 py-2 bg-primary text-white rounded-lg border border-primary transition duration-100 disabled:opacity-50 disabled:cursor-not-allowed hover:bg-transparent hover:text-primary;
+  @apply px-4 py-2 bg-primary text-white rounded-lg border border-primary
+    transition duration-100 disabled:opacity-50 disabled:cursor-not-allowed
+    hover:bg-transparent hover:text-primary;
 }
 
 .input-styles {
-  @apply px-4 py-2 bg-transparent rounded-lg outline-none border border-gray-300 hover:border-black transition duration-100 disabled:opacity-50 disabled:cursor-not-allowed hover:dark:border-white;
+  @apply px-4 py-2 bg-transparent rounded-lg outline-none border border-gray-300
+    hover:border-black transition duration-100 disabled:opacity-50
+    disabled:cursor-not-allowed hover:dark:border-white;
 }
 
 .site-bar-styles {
@@ -14,7 +18,8 @@
 }
 
 .nav-styles {
-  @apply flex flex-wrap justify-start gap-x-8 gap-y-4 items-center justify-between h-full;
+  @apply flex flex-wrap justify-start gap-x-8 gap-y-4 items-center
+    justify-between h-full;
 }
 
 .nav-item {
@@ -22,7 +27,8 @@
 }
 
 .link-styles {
-  @apply text-gray-500 transition duration-100 hover:text-black hover:dark:text-white;
+  @apply text-gray-500 transition duration-100 hover:text-black
+    hover:dark:text-white;
 }
 
 /* .active-link-styles {
diff --git a/utils/db.ts b/utils/db.ts
index 444d40c7e..4012be565 100644
--- a/utils/db.ts
+++ b/utils/db.ts
@@ -1,4 +1,7 @@
 // Copyright 2023-2024 the Deno authors. All rights reserved. MIT license.
+
+/// <reference lib="deno.unstable" />
+
 import { ulid } from "$std/ulid/mod.ts";
 
 const DENO_KV_PATH_KEY = "DENO_KV_PATH";
diff --git a/utils/github_test.ts b/utils/github_test.ts
index 07784cc93..5dcfe2bf4 100644
--- a/utils/github_test.ts
+++ b/utils/github_test.ts
@@ -10,7 +10,7 @@ Deno.test("[plugins] getGitHubUser()", async (test) => {
   await test.step("rejects on error message", async () => {
     const message = crypto.randomUUID();
     const fetchStub = stub(
-      window,
+      globalThis,
       "fetch",
       returnsNext([
         Promise.resolve(
@@ -29,7 +29,7 @@ Deno.test("[plugins] getGitHubUser()", async (test) => {
   await test.step("resolves to a GitHub user object", async () => {
     const body = { login: crypto.randomUUID(), email: crypto.randomUUID() };
     const fetchStub = stub(
-      window,
+      globalThis,
       "fetch",
       returnsNext([Promise.resolve(Response.json(body))]),
     );