diff --git a/server/src/main/java/com/google/fhir/gateway/TokenVerifier.java b/server/src/main/java/com/google/fhir/gateway/TokenVerifier.java
index d1b6758e..5837174f 100644
--- a/server/src/main/java/com/google/fhir/gateway/TokenVerifier.java
+++ b/server/src/main/java/com/google/fhir/gateway/TokenVerifier.java
@@ -154,7 +154,7 @@ private synchronized JWTVerifier getJwtVerifier(String issuer) {
   }
 
   @VisibleForTesting
-  public synchronized DecodedJWT decodeAndVerifyBearerToken(String authHeader) {
+  DecodedJWT decodeAndVerifyBearerToken(String authHeader) {
     if (!authHeader.startsWith(BEARER_PREFIX)) {
       ExceptionUtil.throwRuntimeExceptionAndLog(
           logger,