diff --git a/server/src/validation/requests.rs b/server/src/validation/requests.rs
index 607ea216..7ee6d78a 100644
--- a/server/src/validation/requests.rs
+++ b/server/src/validation/requests.rs
@@ -1302,6 +1302,16 @@ mod tests {
     use super::*;
     use serde_json::json;
 
+    #[test]
+    fn workspace_garde_dependency_pinned_to_0_23() {
+        let root_cargo_toml = concat!(env!("CARGO_MANIFEST_DIR"), "/../Cargo.toml");
+        let contents = std::fs::read_to_string(root_cargo_toml).unwrap();
+        assert!(
+            contents.contains("garde = { version = \"0.23\""),
+            "expected workspace Cargo.toml to pin garde to 0.23, found: {contents}"
+        );
+    }
+
     // --- CreateStoryRequest ---
 
     #[test]