diff --git a/scripts/fix-rupac2021-fulltexts/script.py b/scripts/fix-rupac2021-fulltexts/script.py
new file mode 100644
index 0000000..0d01625
--- /dev/null
+++ b/scripts/fix-rupac2021-fulltexts/script.py
@@ -0,0 +1,28 @@
+from inspirehep.curation.search_check_do import SearchCheckDo
+
+FULLTEXT_URL = "https://jacow.org/rupac2021/papers/{}.pdf"
+
+
+class FixRupac2021Fulltexts(SearchCheckDo):
+    """Fix fulltexts for RuPAC 2021 (Alushta, Crimea)."""
+
+    query = "publication_info.conference_record.$ref:1954430"
+
+    @staticmethod
+    def check(record, logger, state):
+        return "C21-09-27.4" in record.get_value("publication_info.cnum", [])
+
+    @staticmethod
+    def do(record, logger, state):
+        artids = record.get_value("publication_info.artid", [])
+        if len(artids) != 1:
+            logger.warning("Ambiguous article IDs.", artids=artids)
+            return
+        if (num_docs := len(record.get("documents", []))) != 1:
+            logger.warning("Ambiguous or missing documents.", num_docs=num_docs)
+            return
+        artid = artids[0].lower()
+        record["documents"] = [{"url": FULLTEXT_URL.format(artid)}]
+
+
+FixRupac2021Fulltexts()