diff --git a/server/scanner/OpfFileScanner.js b/server/scanner/OpfFileScanner.js
index abc2540ac..87c4f5659 100644
--- a/server/scanner/OpfFileScanner.js
+++ b/server/scanner/OpfFileScanner.js
@@ -32,11 +32,8 @@ class OpfFileScanner {
             bookMetadata.narrators = opfMetadata.narrators
           }
         } else if (key === 'series') {
-          if (opfMetadata.series) {
-            bookMetadata.series = [{
-              name: opfMetadata.series,
-              sequence: opfMetadata.sequence || null
-            }]
+          if (opfMetadata.series?.length) {
+            bookMetadata.series = opfMetadata.series
           }
         } else if (opfMetadata[key] && key !== 'sequence') {
           bookMetadata[key] = opfMetadata[key]
diff --git a/server/utils/parsers/parseOpfMetadata.js b/server/utils/parsers/parseOpfMetadata.js
index d5fb4651c..b51ceea5f 100644
--- a/server/utils/parsers/parseOpfMetadata.js
+++ b/server/utils/parsers/parseOpfMetadata.js
@@ -100,13 +100,19 @@ function fetchLanguage(metadata) {
 }
 
 function fetchSeries(metadataMeta) {
-  if (!metadataMeta) return null
-  return fetchTagString(metadataMeta, "calibre:series")
-}
-
-function fetchVolumeNumber(metadataMeta) {
-  if (!metadataMeta) return null
-  return fetchTagString(metadataMeta, "calibre:series_index")
+  if (!metadataMeta) return []
+  const result = []
+  for (let i = 0; i < metadataMeta.length; i++) {
+    if (metadataMeta[i].$?.name === "calibre:series" && metadataMeta[i].$.content?.trim()) {
+      const name = metadataMeta[i].$.content.trim()
+      let sequence = null
+      if (metadataMeta[i + 1]?.$?.name === "calibre:series_index" && metadataMeta[i + 1].$?.content?.trim()) {
+        sequence = metadataMeta[i + 1].$.content.trim()
+      }
+      result.push({ name, sequence })
+    }
+  }
+  return result
 }
 
 function fetchNarrators(creators, metadata) {
@@ -173,8 +179,7 @@ module.exports.parseOpfMetadataXML = async (xml) => {
     description: fetchDescription(metadata),
     genres: fetchGenres(metadata),
     language: fetchLanguage(metadata),
-    series: fetchSeries(metadata.meta),
-    sequence: fetchVolumeNumber(metadata.meta),
+    series: fetchSeries(metadataMeta),
     tags: fetchTags(metadata)
   }
   return data
diff --git a/test/server/utils/parsers/parseOpfMetadata.test.js b/test/server/utils/parsers/parseOpfMetadata.test.js
new file mode 100644
index 000000000..f1d5ce89e
--- /dev/null
+++ b/test/server/utils/parsers/parseOpfMetadata.test.js
@@ -0,0 +1,113 @@
+const chai = require('chai')
+const expect = chai.expect
+const { parseOpfMetadataXML } = require('../../../../server/utils/parsers/parseOpfMetadata')
+
+describe('parseOpfMetadata - test series', async () => {
+    it('test one series', async () => {
+        const opf = `
+            
+            
+              
+                  
+                  
+              
+            
+        `
+        const parsedOpf = await parseOpfMetadataXML(opf)
+        expect(parsedOpf.series).to.deep.equal([{ "name": "Serie", "sequence": "1" }])
+    })
+
+    it('test more then 1 series - in correct order', async () => {
+        const opf = `
+            
+            
+              
+                  
+                  
+                  
+                  
+                  
+                  
+              
+            
+        `
+        const parsedOpf = await parseOpfMetadataXML(opf)
+        expect(parsedOpf.series).to.deep.equal([
+            { "name": "Serie 1", "sequence": "1" },
+            { "name": "Serie 2", "sequence": "2" },
+            { "name": "Serie 3", "sequence": "3" },
+        ])
+    })
+
+    it('test messed order of series content and index', async () => {
+        const opf = `
+            
+            
+              
+                  
+                  
+                  
+                  
+                  
+              
+            
+        `
+        const parsedOpf = await parseOpfMetadataXML(opf)
+        expect(parsedOpf.series).to.deep.equal([
+            { "name": "Serie 1", "sequence": "1" },
+            { "name": "Serie 3", "sequence": null },
+        ])
+    })
+
+    it('test different values of series content and index', async () => {
+        const opf = `
+            
+            
+              
+                  
+                  
+                  
+                  
+                  
+                  
+              
+            
+        `
+        const parsedOpf = await parseOpfMetadataXML(opf)
+        expect(parsedOpf.series).to.deep.equal([
+            { "name": "Serie 1", "sequence": null },
+            { "name": "Serie 2", "sequence": "abc" },
+            { "name": "Serie 3", "sequence": null },
+        ])
+    })
+
+    it('test empty series content', async () => {
+        const opf = `
+            
+            
+              
+                  
+                  
+              
+            
+        `
+        const parsedOpf = await parseOpfMetadataXML(opf)
+        expect(parsedOpf.series).to.deep.equal([])
+    })
+
+    it('test series and index using an xml namespace', async () => {
+        const opf = `
+            
+            
+              
+                  
+                  
+              
+            
+        `
+        const parsedOpf = await parseOpfMetadataXML(opf)
+        expect(parsedOpf.series).to.deep.equal([
+            { "name": "Serie 1", "sequence": null }
+        ])
+    })
+})