diff --git a/src/sg/gov/moh/fhir/4.0.1/healtcert.json b/src/sg/gov/moh/fhir/4.0.1/healthcert.json
similarity index 100%
rename from src/sg/gov/moh/fhir/4.0.1/healtcert.json
rename to src/sg/gov/moh/fhir/4.0.1/healthcert.json
diff --git a/src/sg/gov/moh/fhir/4.0.1/schema.test.ts b/src/sg/gov/moh/fhir/4.0.1/schema.test.ts
index 24f171d..85e085d 100644
--- a/src/sg/gov/moh/fhir/4.0.1/schema.test.ts
+++ b/src/sg/gov/moh/fhir/4.0.1/schema.test.ts
@@ -2,7 +2,7 @@ import Ajv from "ajv";
 import schema from "./schema.json";
 import draft06 from "../../../../../draft-06-schema.json";
 import covidcert from "./covidcert.json";
-import healthcert from "./healtcert.json";
+import healthcert from "./healthcert.json";
 import axios from "axios";
 
 function loadSchema(uri: string) {
diff --git a/src/sg/gov/moh/healthcert/1.0/healthcert-notarised-schema.json b/src/sg/gov/moh/healthcert/1.0/healthcert-notarised-schema.json
index b93c657..3c1371a 100644
--- a/src/sg/gov/moh/healthcert/1.0/healthcert-notarised-schema.json
+++ b/src/sg/gov/moh/healthcert/1.0/healthcert-notarised-schema.json
@@ -1,5 +1,5 @@
 {
-  "$id": "https://schemata.openattestation.com/sg/gov/moh/healthcert/1.0/healtcert-notarised-schema",
+  "$id": "https://schemata.openattestation.com/sg/gov/moh/healthcert/1.0/healthcert-notarised-schema",
   "$schema": "http://json-schema.org/draft-07/schema#",
   "type": "object",
   "allOf": [
diff --git a/src/sg/gov/moh/healthcert/1.0/healthcert-open-attestation-schema.json b/src/sg/gov/moh/healthcert/1.0/healthcert-open-attestation-schema.json
index cda6ddd..b778b45 100644
--- a/src/sg/gov/moh/healthcert/1.0/healthcert-open-attestation-schema.json
+++ b/src/sg/gov/moh/healthcert/1.0/healthcert-open-attestation-schema.json
@@ -1,5 +1,5 @@
 {
-  "$id": "https://schemata.openattestation.com/sg/gov/moh/healthcert/1.0/healtcert-open-attestation-schema",
+  "$id": "https://schemata.openattestation.com/sg/gov/moh/healthcert/1.0/healthcert-open-attestation-schema",
   "$schema": "http://json-schema.org/draft-07/schema#",
   "type": "object",
   "allOf": [