diff --git a/identifiers/country-cz.csv b/identifiers/country-cz.csv
index de25fb38..93e9fb84 100644
--- a/identifiers/country-cz.csv
+++ b/identifiers/country-cz.csv
@@ -62,7 +62,7 @@ ocd-division/country:cz/ed:62,Prostějov,
 ocd-division/country:cz/ed:63,Přerov,
 ocd-division/country:cz/ed:64,Bruntál,
 ocd-division/country:cz/ed:65,Šumperk,
-ocd-division/country:cz/ed:66,Olomouc,
+ocd-division/country:cz/ed:66,Litovel,
 ocd-division/country:cz/ed:67,Nový Jičín,
 ocd-division/country:cz/ed:68,Opava,
 ocd-division/country:cz/ed:69,Frýdek-Místek,
diff --git a/identifiers/country-cz/README.md b/identifiers/country-cz/README.md
index d7874cc8..d6d1ca73 100644
--- a/identifiers/country-cz/README.md
+++ b/identifiers/country-cz/README.md
@@ -6,3 +6,5 @@ This folder list the following administrative divisions of the Czech Republic :
 *  Region [ref](https://en.wikipedia.org/wiki/Regions_of_the_Czech_Republic) and [ref](https://cs.wikipedia.org/wiki/Administrativn%C3%AD_d%C4%9Blen%C3%AD_%C4%8Ceska) as **region**. The Capital City of Prague is one of the 14 higher territorial self-governing units [ref](https://www.psp.cz/docs/laws/1997/347.html), so it is designed as region.  
 
 The identifiers were defined using the [Senat Official Website](https://www.senat.cz/senat/volby/index-eng.php?ke_dni=30.1.2020&O=12) and the [ISO codes](https://www.iso.org/obp/ui/#iso:code:3166:CZ).
+
+Update [rename Olomouc to Litovel](https://apl2.czso.cz/iSMS/cispol.jsp?ciselid=657422&kodcis=1057&utm_source=chatgpt.com) on 2026-01-01. The Ocd id remains the same.
\ No newline at end of file
diff --git a/identifiers/country-cz/districts.csv b/identifiers/country-cz/districts.csv
index 8912ab27..8a8b17d3 100644
--- a/identifiers/country-cz/districts.csv
+++ b/identifiers/country-cz/districts.csv
@@ -61,7 +61,7 @@ ocd-division/country:cz/ed:62,Prostějov
 ocd-division/country:cz/ed:63,Přerov
 ocd-division/country:cz/ed:64,Bruntál
 ocd-division/country:cz/ed:65,Šumperk
-ocd-division/country:cz/ed:66,Olomouc
+ocd-division/country:cz/ed:66,Litovel
 ocd-division/country:cz/ed:67,Nový Jičín
 ocd-division/country:cz/ed:68,Opava
 ocd-division/country:cz/ed:69,Frýdek-Místek