diff --git a/.github/workflows/bun-linux-build.yml b/.github/workflows/bun-linux-build.yml
index 93ca4f0240..33e26621e9 100644
--- a/.github/workflows/bun-linux-build.yml
+++ b/.github/workflows/bun-linux-build.yml
@@ -4,6 +4,9 @@ concurrency:
   group: bun-linux-build-${{ github.ref }}
   cancel-in-progress: true
 
+env:
+  BUN_CI: 1
+
 on:
   push:
     branches:
diff --git a/.github/workflows/bun-mac-aarch64.yml b/.github/workflows/bun-mac-aarch64.yml
index c1c045e56d..85777e3f63 100644
--- a/.github/workflows/bun-mac-aarch64.yml
+++ b/.github/workflows/bun-mac-aarch64.yml
@@ -7,7 +7,7 @@ concurrency:
 env:
   LLVM_VERSION: 16
   BUN_DOWNLOAD_URL_BASE: https://pub-5e11e972747a44bf9aaf9394f185a982.r2.dev/releases/latest
-
+  BUN_CI: 1
 on:
   push:
     branches: [main]
diff --git a/.github/workflows/bun-mac-x64-baseline.yml b/.github/workflows/bun-mac-x64-baseline.yml
index 966b97c493..b335c2dc76 100644
--- a/.github/workflows/bun-mac-x64-baseline.yml
+++ b/.github/workflows/bun-mac-x64-baseline.yml
@@ -7,7 +7,7 @@ concurrency:
 env:
   LLVM_VERSION: 16
   BUN_DOWNLOAD_URL_BASE: https://pub-5e11e972747a44bf9aaf9394f185a982.r2.dev/releases/latest
-
+  BUN_CI: 1
 on:
   push:
     branches: [main]
diff --git a/.github/workflows/bun-mac-x64.yml b/.github/workflows/bun-mac-x64.yml
index 09e31f7f10..9403c9e663 100644
--- a/.github/workflows/bun-mac-x64.yml
+++ b/.github/workflows/bun-mac-x64.yml
@@ -7,7 +7,7 @@ concurrency:
 env:
   LLVM_VERSION: 16
   BUN_DOWNLOAD_URL_BASE: https://pub-5e11e972747a44bf9aaf9394f185a982.r2.dev/releases/latest
-
+  BUN_CI: 1
 on:
   push:
     branches: [main]
diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
index 85d09b3a9f..77ba88d46a 100644
--- a/.github/workflows/format.yml
+++ b/.github/workflows/format.yml
@@ -12,7 +12,7 @@ on:
 
 env:
   ZIG_VERSION: 0.12.0-dev.1828+225fe6ddb
-
+  BUN_CI: 1
 jobs:
   format:
     name: format
diff --git a/test/harness.ts b/test/harness.ts
index 4c27ab6ba1..42f251d504 100644
--- a/test/harness.ts
+++ b/test/harness.ts
@@ -9,6 +9,7 @@ export const isLinux = process.platform === "linux";
 export const isPosix = isMacOS || isLinux;
 export const isWindows = process.platform === "win32";
 export const isIntelMacOS = isMacOS && process.arch === "x64";
+export const isBunCI = process.env.BUN_CI === "1";
 
 export const bunEnv: NodeJS.ProcessEnv = {
   ...process.env,
@@ -21,6 +22,8 @@ export const bunEnv: NodeJS.ProcessEnv = {
   BUN_RUNTIME_TRANSPILER_CACHE_PATH: "0",
 };
 
+delete bunEnv.BUN_CI;
+
 if (isWindows) {
   bunEnv.SHELLOPTS = "igncr"; // Ignore carriage return
 }
@@ -389,16 +392,24 @@ export async function describeWithContainer(
   fn: (port: number) => void,
 ) {
   describe(label, () => {
-    const docker = dockerExe();
-    if (!docker) {
-      test.skip(`docker is not installed, skipped: ${image}`, () => {});
-      return;
-    }
     const { arch, platform } = process;
     if ((archs && !archs?.includes(arch)) || platform === "win32") {
       test.skip(`docker image is not supported on ${platform}/${arch}, skipped: ${image}`, () => {});
       return false;
     }
+
+    const docker = dockerExe();
+    if (!docker) {
+      if (isBunCI) {
+        test(label, () => {
+          throw new Error("Docker is not installed on CI but is required for this test");
+        });
+        return;
+      }
+      test.skip(`docker is not installed, skipped: ${image}`, () => {});
+      return;
+    }
+
     let containerId: string;
     {
       const envs = Object.entries(env).map(([k, v]) => `-e${k}=${v}`);
diff --git a/test/js/third_party/mongodb/mongodb.test.ts b/test/js/third_party/mongodb/mongodb.test.ts
index da0a089cfb..01acc1bb1d 100644
--- a/test/js/third_party/mongodb/mongodb.test.ts
+++ b/test/js/third_party/mongodb/mongodb.test.ts
@@ -1,9 +1,10 @@
 import { test, expect, describe } from "bun:test";
+import { isBunCI } from "harness";
 import { MongoClient } from "mongodb";
 
 const CONNECTION_STRING = process.env.TLS_MONGODB_DATABASE_URL;
 
-const it = CONNECTION_STRING ? test : test.skip;
+const it = CONNECTION_STRING ? test : test.skipIf(!isBunCI);
 
 describe("mongodb", () => {
   it("should connect and inpect", async () => {
diff --git a/test/js/third_party/nodemailer/nodemailer.test.ts b/test/js/third_party/nodemailer/nodemailer.test.ts
index 36a2295247..ecf70cf6c3 100644
--- a/test/js/third_party/nodemailer/nodemailer.test.ts
+++ b/test/js/third_party/nodemailer/nodemailer.test.ts
@@ -1,8 +1,8 @@
 import { test, expect, describe } from "bun:test";
-import { bunRun } from "harness";
+import { bunRun, isBunCI } from "harness";
 import path from "path";
 
-const it = process.env.SMTP_SENDGRID_KEY && process.env.SMTP_SENDGRID_SENDER ? test : test.skip;
+const it = process.env.SMTP_SENDGRID_KEY && process.env.SMTP_SENDGRID_SENDER ? test : test.skipIf(!isBunCI);
 describe("nodemailer", () => {
   it("basic smtp", async () => {
     try {
diff --git a/test/js/third_party/postgres/postgres.test.ts b/test/js/third_party/postgres/postgres.test.ts
index 991c85d880..7ce456b872 100644
--- a/test/js/third_party/postgres/postgres.test.ts
+++ b/test/js/third_party/postgres/postgres.test.ts
@@ -1,11 +1,12 @@
 import { test, expect, describe } from "bun:test";
+import { isBunCI } from "harness";
 import { Pool, Client } from "pg";
 import { parse } from "pg-connection-string";
 import postgres from "postgres";
 
 const CONNECTION_STRING = process.env.TLS_POSTGRES_DATABASE_URL;
 
-const it = CONNECTION_STRING ? test : test.skip;
+const it = CONNECTION_STRING ? test : test.skipIf(!isBunCI);
 
 describe("pg", () => {
   it("should connect using TLS", async () => {