diff --git a/Cargo.toml b/Cargo.toml
index a91ecbb4e0..e08de8187d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,7 +30,7 @@ hyper-util = "0.1"
 log = "0.4.21"
 once_cell = "1.13"
 ordered-float = "4.0"
-pin-project-lite = "0.2"
+pin-project-lite = "=0.2.14" # 0.2.15 is failing for cargo-check-external-types
 prost = "0.13"
 prost-build = "0.13"
 prost-types = "0.13"