diff --git a/alfa-client/libs/command-shared/tsconfig.lib.json b/alfa-client/libs/command-shared/tsconfig.lib.json
index 4eed46aa156820e1dc14c526cfaab634541466b9..b3a6b3cf0a390f00153e9158d897fc852a8048ee 100644
--- a/alfa-client/libs/command-shared/tsconfig.lib.json
+++ b/alfa-client/libs/command-shared/tsconfig.lib.json
@@ -2,7 +2,7 @@
   "extends": "./tsconfig.json",
   "compilerOptions": {
     "outDir": "../../dist/out-tsc",
-    "target": "ES2022",
+    "target": "es2015",
     "declaration": true,
     "declarationMap": true,
     "inlineSources": true,