diff --git a/library/compiler-builtins/Cargo.toml b/library/compiler-builtins/Cargo.toml
index 75bb81ec1877..b39ec8a25dac 100644
--- a/library/compiler-builtins/Cargo.toml
+++ b/library/compiler-builtins/Cargo.toml
@@ -1,5 +1,5 @@
 [workspace]
-resolver = "3"
+resolver = "2"
 members = [
     "builtins-test",
     "compiler-builtins",