diff --git a/server/models/Author.js b/server/models/Author.js
index 790b35dd..220abeb8 100644
--- a/server/models/Author.js
+++ b/server/models/Author.js
@@ -114,11 +114,14 @@ class Author extends Model {
   static async getOldByNameAndLibrary(authorName, libraryId) {
     const author = (await this.findOne({
       where: [
-        literal(`name = '${authorName}' COLLATE NOCASE`),
+        literal(`name = ':authorName' COLLATE NOCASE`),
         {
           libraryId
         }
-      ]
+      ],
+      replacements: {
+        authorName
+      }
     }))?.getOldAuthor()
     return author
   }
diff --git a/server/models/Series.js b/server/models/Series.js
index e8407d5c..2b37002d 100644
--- a/server/models/Series.js
+++ b/server/models/Series.js
@@ -105,11 +105,14 @@ class Series extends Model {
   static async getOldByNameAndLibrary(seriesName, libraryId) {
     const series = (await this.findOne({
       where: [
-        literal(`name = '${seriesName}' COLLATE NOCASE`),
+        literal(`name = ':seriesName' COLLATE NOCASE`),
         {
           libraryId
         }
-      ]
+      ],
+      replacements: {
+        seriesName
+      }
     }))?.getOldSeries()
     return series
   }