Another dep fix

Author: devongovett

selectors/Cargo.toml

@@ -27,7 +27,7 @@ phf = "0.8"
 precomputed-hash = "0.1"
 smallvec = "1.0"
 serde = { version = "1.0.123", features = ["derive"], optional = true }
-schemars = { version = "*", features = ["smallvec"], optional = true }
+schemars = { version = "0.8.11", features = ["smallvec"], optional = true }
 
 [build-dependencies]
 phf_codegen = "0.8"