diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index d21fdb35c0..a75ff44f7e 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -1,6 +1,5 @@
 <!--
-Before submitting a PR, please read
-https://github.com/denoland/deno/blob/master/docs/contributing.md
+Before submitting a PR, please read http://deno.land/manual/contributing
 
 1. Give the PR a descriptive title.
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5cd8ca8edb..843a98b024 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -35,13 +35,13 @@ jobs:
           - os: ubuntu-18.04
             kind: test_release
 
-      # Always run master branch builds to completion. This allows the cache to
+      # Always run main branch builds to completion. This allows the cache to
       # stay mostly up-to-date in situations where a single job fails due to
       # e.g. a flaky test.
       # Don't fast-fail on tag build because publishing binaries shouldn't be
       # prevented if if any of the stages fails (which can be a false negative).
       fail-fast: ${{ github.event_name == 'pull_request' || (github.ref !=
-        'refs/heads/master' && !startsWith(github.ref, 'refs/tags/')) }}
+        'refs/heads/main' && !startsWith(github.ref, 'refs/tags/')) }}
 
     env:
       CARGO_INCREMENTAL: 0
@@ -55,7 +55,7 @@ jobs:
       - name: Clone repository
         uses: actions/checkout@v2
         with:
-          # Use depth > 1, because sometimes we need to rebuild master and if
+          # Use depth > 1, because sometimes we need to rebuild main and if
           # other commits have landed it will become impossible to rebuild if
           # the checkout is too shallow.
           fetch-depth: 5
@@ -120,7 +120,7 @@ jobs:
           runner.os != 'Windows' &&
           matrix.kind == 'test_release' &&
           github.repository == 'denoland/deno' &&
-          (github.ref == 'refs/heads/master' ||
+          (github.ref == 'refs/heads/main' ||
           startsWith(github.ref, 'refs/tags/'))
         uses: google-github-actions/setup-gcloud@master
         with:
@@ -133,7 +133,7 @@ jobs:
           runner.os == 'Windows' &&
           matrix.kind == 'test_release' &&
           github.repository == 'denoland/deno' &&
-          (github.ref == 'refs/heads/master' ||
+          (github.ref == 'refs/heads/main' ||
           startsWith(github.ref, 'refs/tags/'))
         uses: google-github-actions/setup-gcloud@master
         env:
@@ -147,7 +147,7 @@ jobs:
         if: |
           matrix.kind == 'test_release' &&
           github.repository == 'denoland/deno' &&
-          github.ref == 'refs/heads/master'
+          github.ref == 'refs/heads/main'
         shell: bash
         run: |
           echo "DENO_CANARY=true" >> $GITHUB_ENV
@@ -210,7 +210,7 @@ jobs:
           runner.os != 'Windows' &&
           matrix.kind == 'test_release' &&
           github.repository == 'denoland/deno' &&
-          github.ref == 'refs/heads/master'
+          github.ref == 'refs/heads/main'
         run: |
           gsutil cp ./target/release/*.zip gs://dl.deno.land/canary/$(git rev-parse HEAD)/
           echo $(git rev-parse HEAD) > canary-latest.txt
@@ -221,7 +221,7 @@ jobs:
           runner.os == 'Windows' &&
           matrix.kind == 'test_release' &&
           github.repository == 'denoland/deno' &&
-          github.ref == 'refs/heads/master'
+          github.ref == 'refs/heads/main'
         env:
           CLOUDSDK_PYTHON: ${{env.pythonLocation}}\python.exe
         shell: bash
@@ -270,7 +270,7 @@ jobs:
         if: |
           matrix.kind == 'bench' &&
           github.repository == 'denoland/deno' &&
-          github.ref == 'refs/heads/master'
+          github.ref == 'refs/heads/main'
         env:
           DENOBOT_PAT: ${{ secrets.DENOBOT_PAT }}
         run: |
diff --git a/README.md b/README.md
index ae71067fdc..71c22721a7 100644
--- a/README.md
+++ b/README.md
@@ -84,9 +84,9 @@ More in-depth info can be found in the runtime
 We appreciate your help!
 
 To contribute, please read our
-[guidelines](https://github.com/denoland/deno/blob/master/docs/contributing/style_guide.md).
+[guidelines](https://github.com/denoland/deno/blob/main/docs/contributing/style_guide.md).
 
-[Build Status - Cirrus]: https://github.com/denoland/deno/workflows/ci/badge.svg?branch=master&event=push
+[Build Status - Cirrus]: https://github.com/denoland/deno/workflows/ci/badge.svg?branch=main&event=push
 [Build status]: https://github.com/denoland/deno/actions
 [Twitter badge]: https://twitter.com/intent/follow?screen_name=deno_land
 [Twitter handle]: https://img.shields.io/twitter/follow/deno_land.svg?style=social&label=Follow
diff --git a/core/README.md b/core/README.md
index 2438ecede5..55ec05a2d0 100644
--- a/core/README.md
+++ b/core/README.md
@@ -21,10 +21,10 @@ function to trigger the "dispatch" callback in Rust. The user is responsible for
 encoding both the request and response into a Uint8Array.
 
 Documentation for this crate is thin at the moment. Please see
-[http_bench_bin_ops.rs](https://github.com/denoland/deno/blob/master/core/examples/http_bench_bin_ops.rs)
+[http_bench_bin_ops.rs](https://github.com/denoland/deno/blob/main/core/examples/http_bench_bin_ops.rs)
 and
-[http_bench_json_ops.rs](https://github.com/denoland/deno/blob/master/core/examples/http_bench_json_ops.rs)
+[http_bench_json_ops.rs](https://github.com/denoland/deno/blob/main/core/examples/http_bench_json_ops.rs)
 as a simple example of usage.
 
 TypeScript support and a lot of other functionality is not available at this
-layer. See the [CLI](https://github.com/denoland/deno/tree/master/cli) for that.
+layer. See the [CLI](https://github.com/denoland/deno/tree/main/cli) for that.
diff --git a/docs/contributing/building_from_source.md b/docs/contributing/building_from_source.md
index 227b424188..96e3e1b88d 100644
--- a/docs/contributing/building_from_source.md
+++ b/docs/contributing/building_from_source.md
@@ -103,7 +103,7 @@ Build with Cargo:
 # Build:
 cargo build -vv
 
-# Build errors?  Ensure you have latest master and try building again, or if that doesn't work try:
+# Build errors?  Ensure you have latest main and try building again, or if that doesn't work try:
 cargo clean && cargo build -vv
 
 # Run:
diff --git a/docs/contributing/release_schedule.md b/docs/contributing/release_schedule.md
index b632a81c98..7242dc1641 100644
--- a/docs/contributing/release_schedule.md
+++ b/docs/contributing/release_schedule.md
@@ -14,7 +14,7 @@ Stable releases can be found on the
 ### Canary channel
 
 In addition to the stable channel described above, canaries are released
-multiple times daily (for each commit on master). You can upgrade to the latest
+multiple times daily (for each commit on main). You can upgrade to the latest
 canary release by running:
 
 ```
diff --git a/docs/runtime.md b/docs/runtime.md
index 6c64c4abf6..8d9a8c5c6e 100644
--- a/docs/runtime.md
+++ b/docs/runtime.md
@@ -23,4 +23,4 @@ The TypeScript definitions for the Deno namespaces can be found in the
 file.
 
 The documentation for all of the Deno specific APIs can be found on
-[doc.deno.land](https://doc.deno.land/https/raw.githubusercontent.com/denoland/deno/master/cli/dts/lib.deno.ns.d.ts).
+[doc.deno.land](https://doc.deno.land/https/raw.githubusercontent.com/denoland/deno/main/cli/dts/lib.deno.ns.d.ts).
diff --git a/docs/runtime/stability.md b/docs/runtime/stability.md
index 6bb60ae5c0..9cdc1eea8a 100644
--- a/docs/runtime/stability.md
+++ b/docs/runtime/stability.md
@@ -15,7 +15,7 @@ Passing this flag does a few things:
 
 - It enables the use of unstable APIs during runtime.
 - It adds the
-  [`lib.deno.unstable.d.ts`](https://doc.deno.land/https/raw.githubusercontent.com/denoland/deno/master/cli/dts/lib.deno.unstable.d.ts)
+  [`lib.deno.unstable.d.ts`](https://doc.deno.land/https/raw.githubusercontent.com/denoland/deno/main/cli/dts/lib.deno.unstable.d.ts)
   file to the list of TypeScript definitions that are used for type checking.
   This includes the output of `deno types`.
 
diff --git a/docs/standard_library.md b/docs/standard_library.md
index b2110b6eb4..36006d3ee0 100644
--- a/docs/standard_library.md
+++ b/docs/standard_library.md
@@ -14,11 +14,11 @@ Deno is released.
 
 We strongly suggest to always use imports with pinned version of standard
 library to avoid unintended changes. For example, rather than linking to the
-master branch of code, which may change at any time, potentially causing
+default branch of code, which may change at any time, potentially causing
 compilation errors or unexpected behavior:
 
 ```typescript
-// imports from master, this should be avoided
+// import the latest release, this should be avoided
 import { copy } from "https://deno.land/std/fs/copy.ts";
 ```
 
diff --git a/tools/wpt.ts b/tools/wpt.ts
index 0167bda066..12e9047a48 100755
--- a/tools/wpt.ts
+++ b/tools/wpt.ts
@@ -67,7 +67,7 @@ switch (command) {
     update
       Update the \`expectation.json\` to match the current reality.
 
-More details at https://deno.land/manual@master/contributing/web_platform_tests
+More details at https://deno.land/manual@main/contributing/web_platform_tests
 
     `);
     break;