diff --git a/package.json b/package.json
index b8e7f6d8eb..46468126c4 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "@salesforce/schemas": "^1.0.1",
     "@salesforce/ts-types": "^1.5.20",
     "@types/graceful-fs": "^4.1.5",
-    "@types/jsforce": "^1.9.38",
+    "@types/jsforce": "^1.9.41",
     "@types/mkdirp": "^1.0.1",
     "archiver": "^5.3.0",
     "debug": "^3.1.0",
diff --git a/src/logger.ts b/src/logger.ts
index 2dc7968fd9..84a8188ddb 100644
--- a/src/logger.ts
+++ b/src/logger.ts
@@ -10,7 +10,7 @@ import * as path from 'path';
 import { Writable } from 'stream';
 // @ts-ignore
 import * as Bunyan from '@salesforce/bunyan';
-import { parseJson, parseJsonMap } from '@salesforce/kit';
+import { Env, parseJson, parseJsonMap } from '@salesforce/kit';
 import {
   Dictionary,
   ensure,
@@ -219,6 +219,21 @@ export class Logger {
   // The sfdx root logger singleton
   private static rootLogger?: Logger;
 
+  /**
+   * The default rotation period for logs. Example '1d' will rotate logs daily (at midnight).
+   * See 'period' docs here: https://github.com/forcedotcom/node-bunyan#stream-type-rotating-file
+   */
+
+  public readonly logRotationPeriod = new Env().getString('SFDX_LOG_ROTATION_PERIOD') || '1d';
+
+  /**
+   * The number of backup rotated log files to keep.
+   * Example: '3' will have the base sfdx.log file, and the past 3 (period) log files.
+   * See 'count' docs here: https://github.com/forcedotcom/node-bunyan#stream-type-rotating-file
+   */
+
+  public readonly logRotationCount = new Env().getNumber('SFDX_LOG_ROTATION_COUNT') || 2;
+
   /**
    * Whether debug is enabled for this Logger.
    */
@@ -416,14 +431,14 @@ export class Logger {
       !this.bunyan.streams.find(
         // No bunyan typings
         // eslint-disable-next-line @typescript-eslint/no-explicit-any
-        (stream: any) => stream.type === 'file' && stream.path === logFile
+        (stream: any) => stream.type === 'rotating-file' && stream.path === logFile
       )
     ) {
-      // TODO: rotating-file
-      // https://github.com/trentm/node-bunyan#stream-type-rotating-file
       this.addStream({
-        type: 'file',
+        type: 'rotating-file',
         path: logFile,
+        period: this.logRotationPeriod,
+        count: this.logRotationCount,
         level: this.bunyan.level() as number,
       });
     }
@@ -458,14 +473,14 @@ export class Logger {
       !this.bunyan.streams.find(
         // No bunyan typings
         // eslint-disable-next-line @typescript-eslint/no-explicit-any
-        (stream: any) => stream.type === 'file' && stream.path === logFile
+        (stream: any) => stream.type === 'rotating-file' && stream.path === logFile
       )
     ) {
-      // TODO: rotating-file
-      // https://github.com/trentm/node-bunyan#stream-type-rotating-file
       this.addStream({
-        type: 'file',
+        type: 'rotating-file',
         path: logFile,
+        period: this.logRotationPeriod,
+        count: this.logRotationCount,
         level: this.bunyan.level() as number,
       });
     }
diff --git a/test/unit/loggerTest.ts b/test/unit/loggerTest.ts
index 1068018c35..854da97b79 100644
--- a/test/unit/loggerTest.ts
+++ b/test/unit/loggerTest.ts
@@ -20,6 +20,8 @@ const $$ = testSetup();
 
 describe('Logger', () => {
   const sfdxEnv = process.env.SFDX_ENV;
+  const logRotationPeriodBackup = process.env.SFDX_LOG_ROTATION_PERIOD;
+  const logRotationCountBackup = process.env.SFDX_LOG_ROTATION_COUNT;
 
   beforeEach(async () => {
     process.env.SFDX_ENV = 'test';
@@ -32,7 +34,9 @@ describe('Logger', () => {
 
   afterEach(() => {
     Logger.destroyRoot();
-    process.env.SFDX_ENV = sfdxEnv;
+    if (sfdxEnv) process.env.SFDX_ENV = sfdxEnv;
+    if (logRotationPeriodBackup) process.env.SFDX_LOG_ROTATION_PERIOD = logRotationPeriodBackup;
+    if (logRotationCountBackup) process.env.SFDX_LOG_ROTATION_COUNT = logRotationCountBackup;
   });
 
   describe('constructor', () => {
@@ -114,11 +118,25 @@ describe('Logger', () => {
       expect(utilMkdirpStub.called).to.be.false;
       expect(utilWriteFileStub.called).to.be.false;
       const addStreamArgs = addStreamStub.firstCall.args[0];
-      expect(addStreamArgs).to.have.property('type', 'file');
+      expect(addStreamArgs).to.have.property('type', 'rotating-file');
       expect(addStreamArgs).to.have.property('path', testLogFile);
       expect(addStreamArgs).to.have.property('level', logger.getLevel());
     });
 
+    it('should allow log rotation count and period overrides', async () => {
+      process.env.SFDX_LOG_ROTATION_PERIOD = '1w';
+      process.env.SFDX_LOG_ROTATION_COUNT = '3';
+
+      utilAccessStub.returns(Promise.resolve({}));
+      const logger = new Logger('testing-env-vars');
+      const addStreamStub = $$.SANDBOX.stub(logger, 'addStream');
+      await logger.addLogFileStream(testLogFile);
+
+      const addStreamArgs = addStreamStub.firstCall.args[0];
+      expect(addStreamArgs).to.have.property('period', '1w');
+      expect(addStreamArgs).to.have.property('count', 3);
+    });
+
     it('should create a new log file and all directories if nonexistent', async () => {
       utilAccessStub.throws();
       const logger = new Logger('testLogger');
diff --git a/yarn.lock b/yarn.lock
index f6199f81f1..bc1e16d86e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -750,10 +750,10 @@
   resolved "https://registry.yarnpkg.com/@types/jsen/-/jsen-0.0.19.tgz#f6f7ed4b390a88a52e8ac965945a761cbd9c83e9"
   integrity sha512-0XpFleNckrCh6X240Zelb91R7I9REYIx6VFTbxWCn/ontOreJe0+/HYTXyPSDOYKbx6s/Uo44UQjSAulk6jAjw==
 
-"@types/jsforce@^1.9.38":
-  version "1.9.38"
-  resolved "https://registry.yarnpkg.com/@types/jsforce/-/jsforce-1.9.38.tgz#7c4b491d29e8becb9dcdd58c60472becce223139"
-  integrity sha512-+Iwf5jlDiK8z+zI2LAi4mzln8++5lETv2YofFEATu+dNkrP8LACB76lz2tPsXDx/a+5uW8HQhbwL/SyqIic0cg==
+"@types/jsforce@^1.9.41":
+  version "1.9.41"
+  resolved "https://registry.yarnpkg.com/@types/jsforce/-/jsforce-1.9.41.tgz#08b31a0d04e14fd5f8a232196e16bc742e22bbed"
+  integrity sha512-J0dReK6EPGR98b4fAowqqQqFXH4DGtPxY2lLrZGcuCthrHYkYNrKnfGf2xM1jwiBC5CGdSEDmWEDwRwwmX25tA==
   dependencies:
     "@types/node" "*"