diff --git a/src/modules/wrds/WRDS.jl b/src/modules/wrds/WRDS.jl
index 46f77da..77af162 100644
--- a/src/modules/wrds/WRDS.jl
+++ b/src/modules/wrds/WRDS.jl
@@ -103,6 +103,7 @@ function pgpass(wrdsuser::WrdsUser)
             secret_pass = Base.getpass("WRDS password for user $(wrdsuser.username)")
             print("\n")
             pass = read(secret_pass, String)
+            Base.shred!()
             entry = "$WRDS_POSTGRES_HOST:$WRDS_POSTGRES_PORT:$WRDS_POSTGRES_DB:$(wrdsuser.username):$pass"
             if isfile(pgpass)
                 # Change permission to write