1 files changed, 2 insertions, 3 deletions
diff --git a/crates/ra_proc_macro_srv/Cargo.toml b/crates/ra_proc_macro_srv/Cargo.toml
index 315191cc5..6300d668a 100644
--- a/crates/ra_proc_macro_srv/Cargo.toml
+++ b/crates/ra_proc_macro_srv/Cargo.toml
@@ -12,10 +12,9 @@ doctest = false
 ra_tt = { path = "../ra_tt" }
 ra_proc_macro = { path = "../ra_proc_macro" }
-serde_derive = "1.0.104"
-serde = "1.0.104"
-serde_json = "1.0.48"
 [dev-dependencies]
 cargo_metadata = "0.9.1"
 difference = "2.0.0"
+# used as proc macro test target
+serde_derive = "=1.0.104"
+\ No newline at end of file