diff --git a/.changeset/fiery-sheep-wear.md b/.changeset/fiery-sheep-wear.md
new file mode 100644
index 000000000..e552e4f43
--- /dev/null
+++ b/.changeset/fiery-sheep-wear.md
@@ -0,0 +1,14 @@
+---
+"@slack/cli-test": major
+---
+
+refactor(cli-test)!: rename env add/remove to env set/unset
+
+The Slack CLI v4.0.0 release changes the `env` commands to prefer `set` and `unset` aliases and the test tracers of this package were changed to match:
+
+```diff
+- SLACK_TRACE_ENV_ADD_SUCCESS
+- SLACK_TRACE_ENV_REMOVE_SUCCESS
++ SLACK_TRACE_ENV_SET_SUCCESS
++ SLACK_TRACE_ENV_UNSET_SUCCESS
+```
diff --git a/packages/cli-test/src/cli/commands/env.test.ts b/packages/cli-test/src/cli/commands/env.test.ts
index 91d7c984d..1095bb469 100644
--- a/packages/cli-test/src/cli/commands/env.test.ts
+++ b/packages/cli-test/src/cli/commands/env.test.ts
@@ -24,13 +24,13 @@ describe('env commands', () => {
     sandbox.restore();
   });
 
-  describe('add method', () => {
-    it('should invoke `env add <key> <value>`', async () => {
-      await env.add({ appPath: '/some/path', secretKey: 'key', secretValue: 'value' });
+  describe('set method', () => {
+    it('should invoke `env set <key> <value>`', async () => {
+      await env.set({ appPath: '/some/path', secretKey: 'key', secretValue: 'value' });
       sandbox.assert.calledWith(
         spawnSpy,
         sinon.match.string,
-        sinon.match.array.contains(['env', 'add', 'key', 'value']),
+        sinon.match.array.contains(['env', 'set', 'key', 'value']),
       );
     });
   });
@@ -40,10 +40,10 @@ describe('env commands', () => {
       sandbox.assert.calledWith(spawnSpy, sinon.match.string, sinon.match.array.contains(['env', 'list']));
     });
   });
-  describe('remove method', () => {
-    it('should invoke `env remove <key>`', async () => {
-      await env.remove({ appPath: '/some/path', secretKey: 'key' });
-      sandbox.assert.calledWith(spawnSpy, sinon.match.string, sinon.match.array.contains(['env', 'remove', 'key']));
+  describe('unset method', () => {
+    it('should invoke `env unset <key>`', async () => {
+      await env.unset({ appPath: '/some/path', secretKey: 'key' });
+      sandbox.assert.calledWith(spawnSpy, sinon.match.string, sinon.match.array.contains(['env', 'unset', 'key']));
     });
   });
 });
diff --git a/packages/cli-test/src/cli/commands/env.ts b/packages/cli-test/src/cli/commands/env.ts
index c9894a08c..011c7bf72 100644
--- a/packages/cli-test/src/cli/commands/env.ts
+++ b/packages/cli-test/src/cli/commands/env.ts
@@ -9,11 +9,11 @@ export interface EnvCommandArguments {
 }
 
 /**
- * `slack env add`
+ * `slack env set`
  * @returns command output
  */
-export const add = async function envAdd(args: ProjectCommandArguments & EnvCommandArguments): Promise<string> {
-  const cmd = new SlackCLIProcess(['env', 'add', args.secretKey, args.secretValue], args);
+export const set = async function envSet(args: ProjectCommandArguments & EnvCommandArguments): Promise<string> {
+  const cmd = new SlackCLIProcess(['env', 'set', args.secretKey, args.secretValue], args);
   const proc = await cmd.execAsync({
     cwd: args.appPath,
   });
@@ -33,13 +33,13 @@ export const list = async function envList(args: ProjectCommandArguments): Promi
 };
 
 /**
- * `slack env remove`
+ * `slack env unset`
  * @returns command output
  */
-export const remove = async function envRemove(
+export const unset = async function envUnset(
   args: ProjectCommandArguments & Pick<EnvCommandArguments, 'secretKey'>,
 ): Promise<string> {
-  const cmd = new SlackCLIProcess(['env', 'remove', args.secretKey], args);
+  const cmd = new SlackCLIProcess(['env', 'unset', args.secretKey], args);
   const proc = await cmd.execAsync({
     cwd: args.appPath,
   });
@@ -47,7 +47,7 @@ export const remove = async function envRemove(
 };
 
 export default {
-  add,
+  set,
   list,
-  remove,
+  unset,
 };
diff --git a/packages/cli-test/src/utils/constants.ts b/packages/cli-test/src/utils/constants.ts
index cd2bfc00e..3d5362a82 100644
--- a/packages/cli-test/src/utils/constants.ts
+++ b/packages/cli-test/src/utils/constants.ts
@@ -33,10 +33,10 @@ export const SlackTracerId = {
   SLACK_TRACE_DATASTORE_COUNT_DATASTORE: 'SLACK_TRACE_DATASTORE_COUNT_DATASTORE',
   SLACK_TRACE_DATASTORE_COUNT_SUCCESS: 'SLACK_TRACE_DATASTORE_COUNT_SUCCESS',
   SLACK_TRACE_DATASTORE_COUNT_TOTAL: 'SLACK_TRACE_DATASTORE_COUNT_TOTAL',
-  SLACK_TRACE_ENV_ADD_SUCCESS: 'SLACK_TRACE_ENV_ADD_SUCCESS',
+  SLACK_TRACE_ENV_SET_SUCCESS: 'SLACK_TRACE_ENV_SET_SUCCESS',
   SLACK_TRACE_ENV_LIST_COUNT: 'SLACK_TRACE_ENV_LIST_COUNT',
   SLACK_TRACE_ENV_LIST_VARIABLES: 'SLACK_TRACE_ENV_LIST_VARIABLES',
-  SLACK_TRACE_ENV_REMOVE_SUCCESS: 'SLACK_TRACE_ENV_REMOVE_SUCCESS',
+  SLACK_TRACE_ENV_UNSET_SUCCESS: 'SLACK_TRACE_ENV_UNSET_SUCCESS',
   SLACK_TRACE_FEEDBACK_MESSAGE: 'SLACK_TRACE_FEEDBACK_MESSAGE',
   SLACK_TRACE_MANIFEST_VALIDATE_SUCCESS: 'SLACK_TRACE_MANIFEST_VALIDATE_SUCCESS',
   SLACK_TRACE_PLATFORM_DEPLOY_SUCCESS: 'SLACK_TRACE_PLATFORM_DEPLOY_SUCCESS',