diff --git a/CHANGELOG.md b/CHANGELOG.md
index 16e26b5d780..b9e015962bf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -102,8 +102,7 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 ### Removed
 
 - We removed "last-search-date" from the SLR feature, because the last-search-date can be deducted from the git logs. [#9116](https://github.com/JabRef/jabref/pull/9116)
-
-
+- We removed the [CiteseerX](https://docs.jabref.org/collect/import-using-online-bibliographic-database#citeseerx) fetcher, because the API used by JabRef is sundowned.
 
 
 
diff --git a/src/main/java/org/jabref/logic/importer/WebFetchers.java b/src/main/java/org/jabref/logic/importer/WebFetchers.java
index 14caa4031f2..1e9678478f4 100644
--- a/src/main/java/org/jabref/logic/importer/WebFetchers.java
+++ b/src/main/java/org/jabref/logic/importer/WebFetchers.java
@@ -110,7 +110,7 @@ public static SortedSet<SearchBasedFetcher> getSearchBasedFetchers(ImportFormatP
         set.add(new DBLPFetcher(importFormatPreferences));
         set.add(new SpringerFetcher(importerPreferences));
         set.add(new CrossRef());
-        set.add(new CiteSeer());
+        // set.add(new CiteSeer());
         set.add(new DOAJFetcher(importFormatPreferences));
         set.add(new IEEE(importFormatPreferences, importerPreferences));
         set.add(new CompositeSearchBasedFetcher(set, 30));
diff --git a/src/test/java/org/jabref/logic/importer/fetcher/CiteSeerTest.java b/src/test/java/org/jabref/logic/importer/fetcher/CiteSeerTest.java
index e2f6f2951a1..6f47af31866 100644
--- a/src/test/java/org/jabref/logic/importer/fetcher/CiteSeerTest.java
+++ b/src/test/java/org/jabref/logic/importer/fetcher/CiteSeerTest.java
@@ -13,6 +13,7 @@
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
+@Disabled
 @FetcherTest
 class CiteSeerTest {
 
diff --git a/src/test/java/org/jabref/logic/importer/fetcher/MedlineFetcherTest.java b/src/test/java/org/jabref/logic/importer/fetcher/MedlineFetcherTest.java
index ed156ef4c04..65573de7c5e 100644
--- a/src/test/java/org/jabref/logic/importer/fetcher/MedlineFetcherTest.java
+++ b/src/test/java/org/jabref/logic/importer/fetcher/MedlineFetcherTest.java
@@ -59,7 +59,7 @@ public void setUp() throws InterruptedException {
                 .withField(StandardField.AUTHOR, "Endharti, Agustina Tri and Wulandari, Adisti and Listyana, Anik and Norahmawati, Eviana and Permana, Sofy")
                 .withField(new UnknownField("country"), "England")
                 .withField(StandardField.DOI, "10.1186/s12906-016-1345-0")
-                .withField(new UnknownField("pii"), "10.1186/s12906-016-1345-0")
+                .withField(new UnknownField("pii"), "374")
                 .withField(new UnknownField("pmc"), "PMC5037598")
                 .withField(StandardField.ISSN, "1472-6882")
                 .withField(new UnknownField("issn-linking"), "1472-6882")
diff --git a/src/test/java/org/jabref/logic/importer/fetcher/SemanticScholarTest.java b/src/test/java/org/jabref/logic/importer/fetcher/SemanticScholarTest.java
index b8f2d42eb2e..4c1401c6711 100644
--- a/src/test/java/org/jabref/logic/importer/fetcher/SemanticScholarTest.java
+++ b/src/test/java/org/jabref/logic/importer/fetcher/SemanticScholarTest.java
@@ -35,7 +35,7 @@ public class SemanticScholarTest implements PagedSearchFetcherTest {
             .withField(StandardField.DOI, "10.1145/2884781.2884806")
             .withField(StandardField.TITLE, "Overcoming Open Source Project Entry Barriers with a Portal for Newcomers")
             .withField(StandardField.URL, "https://www.semanticscholar.org/paper/4bea2b4029a895bf898701329409e5a784fc2090")
-            .withField(StandardField.VENUE, "2016 IEEE/ACM 38th International Conference on Software Engineering (ICSE)");
+            .withField(StandardField.VENUE, "International Conference on Software Engineering");
 
     private SemanticScholar fetcher;
     private BibEntry entry;
@@ -167,7 +167,7 @@ public void findByEntry() throws Exception {
                 .withField(StandardField.YEAR, "2018")
                 .withField(StandardField.DOI, "10.1007/978-3-030-02302-7_1")
                 .withField(StandardField.URL, "https://www.semanticscholar.org/paper/3bb026fd67db7d8e0e25de3189d6b7031b12783e")
-                .withField(StandardField.VENUE, "PoEM");
+                .withField(StandardField.VENUE, "The Practice of Enterprise Modeling");
 
         entry.withField(StandardField.TITLE, "Formalising BPMN Service Interaction Patterns");
         BibEntry actual = fetcher.performSearch(entry).get(0);