diff --git a/lib/provider/aws/is-binary.js b/lib/provider/aws/is-binary.js
index 59a3cdf..c3a2601 100644
--- a/lib/provider/aws/is-binary.js
+++ b/lib/provider/aws/is-binary.js
@@ -1,6 +1,6 @@
 'use strict';
 
-const BINARY_ENCODINGS = ['gzip', 'deflate', 'br'];
+const BINARY_ENCODINGS = ['gzip', 'deflate', 'br', 'zstd'];
 const BINARY_CONTENT_TYPES = (process.env.BINARY_CONTENT_TYPES || '').split(',');
 
 function isBinaryEncoding(headers) {
diff --git a/lib/provider/azure/is-binary.js b/lib/provider/azure/is-binary.js
index 59a3cdf..c3a2601 100644
--- a/lib/provider/azure/is-binary.js
+++ b/lib/provider/azure/is-binary.js
@@ -1,6 +1,6 @@
 'use strict';
 
-const BINARY_ENCODINGS = ['gzip', 'deflate', 'br'];
+const BINARY_ENCODINGS = ['gzip', 'deflate', 'br', 'zstd'];
 const BINARY_CONTENT_TYPES = (process.env.BINARY_CONTENT_TYPES || '').split(',');
 
 function isBinaryEncoding(headers) {
diff --git a/test/is-binary.js b/test/is-binary.js
index d666c61..3a1f434 100644
--- a/test/is-binary.js
+++ b/test/is-binary.js
@@ -6,6 +6,18 @@ const sinon = require('sinon');
 
 describe('is-binary', function() {
 
+  it('handles content-encoding', function() {
+    const result = isBinary({ ['content-encoding']: 'gzip' }, {});
+
+    expect(result).to.be.true;
+  });
+
+  it('handles zstd content-encoding', function() {
+    const result = isBinary({ ['content-encoding']: 'zstd' }, {});
+
+    expect(result).to.be.true;
+  });
+
   it('handles charset', function() {
     const result = isBinary({ ['content-type']: 'application/json; charset:utf-8' }, {
       binary: ['application/json']