diff --git a/services/search-index-lambda/src/main.rs b/services/search-index-lambda/src/main.rs
--- a/services/search-index-lambda/src/main.rs
+++ b/services/search-index-lambda/src/main.rs
@@ -172,7 +172,7 @@
     query: Query {
       r#match: None,
       term: Some(Term {
-        user_id: user_id.clone(),
+        user_id_keyword: user_id.clone(),
       }),
     },
     script: Some(Script {
diff --git a/services/search-index-lambda/src/query.rs b/services/search-index-lambda/src/query.rs
--- a/services/search-index-lambda/src/query.rs
+++ b/services/search-index-lambda/src/query.rs
@@ -31,6 +31,6 @@
 
 #[derive(Serialize)]
 pub struct Term {
-  #[serde(rename = "userID")]
-  pub user_id: String,
+  #[serde(rename = "userID.keyword")]
+  pub user_id_keyword: String,
 }