diff --git a/CHANGELOG.md b/CHANGELOG.md
index c5d7808..d21b65a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@
 ### Fixes
 
 - Sentry-CLI integration test action - Replace literal "\n" with newlines ([#138](https://github.com/getsentry/github-workflows/pull/138))
+- Sentry-CLI integration test action - Accept chunked ProGuard uploads for compatibility with Sentry CLI 3.x ([#140](https://github.com/getsentry/github-workflows/pull/140))
 
 ## 3.1.0
 
diff --git a/sentry-cli/integration-test/sentry-server.py b/sentry-cli/integration-test/sentry-server.py
index 58d8dce..2d6ba77 100644
--- a/sentry-cli/integration-test/sentry-server.py
+++ b/sentry-cli/integration-test/sentry-server.py
@@ -43,7 +43,7 @@ def do_GET(self):
             self.writeJSON('{"url":"' + uri.geturl() + self.path + '",'
                            '"chunkSize":8388608,"chunksPerRequest":64,"maxFileSize":2147483648,'
                            '"maxRequestSize":33554432,"concurrency":1,"hashAlgorithm":"sha1","compression":["gzip"],'
-                           '"accept":["debug_files","release_files","pdbs","sources","bcsymbolmaps","il2cpp","portablepdbs"]}')
+                           '"accept":["debug_files","release_files","pdbs","sources","bcsymbolmaps","il2cpp","portablepdbs","proguard"]}')
         elif self.isApi('/api/0/organizations/{}/repos/?cursor='.format(apiOrg)):
             self.writeJSONFile("assets/repos.json")
         elif self.isApi('/api/0/organizations/{}/releases/{}@{}/previous-with-commits/'.format(apiOrg, appIdentifier, version)):
diff --git a/sentry-cli/integration-test/tests/action.Tests.ps1 b/sentry-cli/integration-test/tests/action.Tests.ps1
index c8af780..df0582c 100644
--- a/sentry-cli/integration-test/tests/action.Tests.ps1
+++ b/sentry-cli/integration-test/tests/action.Tests.ps1
@@ -43,6 +43,18 @@ Describe 'Invoke-SentryServer' {
         $result.UploadedDebugFiles() | Should -Be @('file3.dylib', 'file2.so', 'file1.dll')
     }
 
+    It "accepts chunked uploads" {
+        $result = Invoke-SentryServer {
+            param([string]$url)
+            $response = Invoke-WebRequest -Uri "$url/api/0/organizations/org/chunk-upload/"
+            $json = $response.Content | ConvertFrom-Json
+            @("debug_files", "pdbs", "sources", "portablepdbs", "proguard") | ForEach-Object {
+                $json.accept | Should -Contain $_
+            }
+        }
+        Should -ActualValue $result.HasErrors() -BeFalse
+    }
+
     It "collects proguard mapping" {
         $result = Invoke-SentryServer {
             Param([string]$url)