diff --git a/.github/debci.txt b/.github/debci.txt
index e1bdc78..896c7d2 100644
--- a/.github/debci.txt
+++ b/.github/debci.txt
@@ -1,3 +1,3 @@
-langcodes==3.5.0
+langcodes==3.5.1
 language_data==1.4.0
 marisa_trie==1.3.1