diff --git a/.buildscript/deploy_snapshot.sh b/.buildscript/deploy_snapshot.sh
index 0e45502e3c..1b542870f8 100755
--- a/.buildscript/deploy_snapshot.sh
+++ b/.buildscript/deploy_snapshot.sh
@@ -7,7 +7,7 @@
 
 SLUG="square/workflow"
 JDK="oraclejdk8"
-BRANCH="trunk"
+BRANCH="main"
 
 set -e
 
diff --git a/.github/workflows/kotlin.yml b/.github/workflows/kotlin.yml
index 67924d6660..ebc35dfe06 100644
--- a/.github/workflows/kotlin.yml
+++ b/.github/workflows/kotlin.yml
@@ -3,7 +3,7 @@ name: Kotlin CI
 on:
   push:
     branches:
-      - trunk
+      - main
   pull_request:
 
 env:
diff --git a/README.md b/README.md
index 66bfc47df6..80723677b3 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # workflow
 
-[![Kotlin CI](https://github.com/square/workflow-kotlin/workflows/Kotlin%20CI/badge.svg)](https://github.com/square/workflow-kotlin/actions?query=branch%3Atrunk)
+[![Kotlin CI](https://github.com/square/workflow-kotlin/workflows/Kotlin%20CI/badge.svg)](https://github.com/square/workflow-kotlin/actions?query=branch%3Amain)
 [![Maven Central](https://img.shields.io/maven-central/v/com.squareup.workflow/workflow-core-jvm.svg?label=Maven%20Central)](https://search.maven.org/search?q=g:%22com.squareup.workflow%22)
 [![GitHub license](https://img.shields.io/badge/license-Apache%20License%202.0-blue.svg?style=flat)](https://www.apache.org/licenses/LICENSE-2.0)
 [![Kotlinlang slack](https://img.shields.io/static/v1?label=kotlinlang&message=squarelibraries&color=brightgreen&logo=slack)](https://kotlinlang.slack.com/archives/C5HT9AL7Q)
diff --git a/RELEASING.md b/RELEASING.md
index 21859309c4..a0dd49ee17 100644
--- a/RELEASING.md
+++ b/RELEASING.md
@@ -5,7 +5,7 @@
 ---
 1. Merge an update of [the change log](CHANGELOG.md) with the changes since the last release.
 
-1. Make sure you're on the `trunk` branch (or fix branch, e.g. `v0.1-fixes`).
+1. Make sure you're on the `main` branch (or fix branch, e.g. `v0.1-fixes`).
 
 1. Confirm that the kotlin build is green before committing any changes
    ```bash
@@ -42,7 +42,7 @@
 
 1. Push your commits and tag:
    ```
-   git push origin trunk
+   git push origin main
    # or git push origin fix-branch
    git push origin v0.1.0
    ```
@@ -57,16 +57,16 @@
    1. If this is a pre-release version, check the pre-release box.
    1. Hit "Publish release".
 
-1. If this was a fix release, merge changes to the trunk branch:
+1. If this was a fix release, merge changes to the main branch:
    ```bash
-   git checkout trunk
+   git checkout main
    git pull
    git merge --no-ff v0.1-fixes
-   # Resolve conflicts. Accept trunk's versions of gradle.properties and podspecs.
-   git push origin trunk
+   # Resolve conflicts. Accept main's versions of gradle.properties and podspecs.
+   git push origin main
    ```
 
-1. Publish the website. See https://github.com/square/workflow/blob/trunk/RELEASING.md.
+1. Publish the website. See https://github.com/square/workflow/blob/main/RELEASING.md.
 
 ### Validating Markdown