diff --git a/src/tools/rust-analyzer/crates/project-model/src/build_dependencies.rs b/src/tools/rust-analyzer/crates/project-model/src/build_dependencies.rs
index dec1ffc72d6b..289b033a6ad3 100644
--- a/src/tools/rust-analyzer/crates/project-model/src/build_dependencies.rs
+++ b/src/tools/rust-analyzer/crates/project-model/src/build_dependencies.rs
@@ -499,7 +499,7 @@ impl WorkspaceBuildScripts {
                 // available in current toolchain's cargo, use it to build compile time deps only.
                 const COMP_TIME_DEPS_MIN_TOOLCHAIN_VERSION: semver::Version = semver::Version {
                     major: 1,
-                    minor: 189,
+                    minor: 89,
                     patch: 0,
                     pre: semver::Prerelease::EMPTY,
                     build: semver::BuildMetadata::EMPTY,