diff --git a/news/2 Fixes/5756.md b/news/2 Fixes/5756.md
new file mode 100644
index 000000000000..3b0dad7ee161
--- /dev/null
+++ b/news/2 Fixes/5756.md	
@@ -0,0 +1 @@
+Append `--allow-prereleases` to black installation command so pipenv can properly resolve it.
diff --git a/src/client/common/installer/poetryInstaller.ts b/src/client/common/installer/poetryInstaller.ts
index 75809c11796e..f5b4c5fabfd5 100644
--- a/src/client/common/installer/poetryInstaller.ts
+++ b/src/client/common/installer/poetryInstaller.ts
@@ -60,8 +60,12 @@ export class PoetryInstaller extends ModuleInstaller implements IModuleInstaller
     }
     protected async getExecutionInfo(moduleName: string, resource?: Uri): Promise<ExecutionInfo> {
         const execPath = this.configurationService.getSettings(resource).poetryPath;
+        const args = ['add', '--dev', moduleName];
+        if (moduleName === 'black') {
+            args.push('--allow-prereleases');
+        }
         return {
-            args: ['add', '--dev', moduleName],
+            args,
             execPath
         };
     }
diff --git a/src/test/common/installer/poetryInstaller.unit.test.ts b/src/test/common/installer/poetryInstaller.unit.test.ts
index 4517c4da62b3..e4bca8b3420b 100644
--- a/src/test/common/installer/poetryInstaller.unit.test.ts
+++ b/src/test/common/installer/poetryInstaller.unit.test.ts
@@ -122,4 +122,15 @@ suite('Module Installer - Poetry', () => {
 
         assert.deepEqual(info, { args: ['add', '--dev', 'something'], execPath: 'poetry path' });
     });
+    test('Get executable info when installing black', async () => {
+        const uri = Uri.file(__dirname);
+        const settings = mock(PythonSettings);
+
+        when(configurationService.getSettings(uri)).thenReturn(instance(settings));
+        when(settings.poetryPath).thenReturn('poetry path');
+
+        const info = await poetryInstaller.getExecutionInfo('black', uri);
+
+        assert.deepEqual(info, { args: ['add', '--dev', 'black', '--allow-prereleases'], execPath: 'poetry path' });
+    });
 });