diff --git a/data/langdb.yaml b/data/langdb.yaml
index c8def5e..c3d5878 100644
--- a/data/langdb.yaml
+++ b/data/langdb.yaml
@@ -109,6 +109,9 @@ languages:
   cjy-hant: [Hant, [AS], 晉語]
   ckb: [Arab, [ME], کوردی]
   cnh: [Latn, [AS], Lai holh]
+  cnr: [cnr-latn]
+  cnr-cyrl: [Cyrl, [EU], црногорски]
+  cnr-latn: [Latn, [EU], crnogorski]
   co: [Latn, [EU], corsu]
   cop: [Copt, [AF, ME], ϯⲙⲉⲧⲣⲉⲙⲛ̀ⲭⲏⲙⲓ]
   cps: [Latn, [AS], Capiceño]
diff --git a/language-data.json b/language-data.json
index 84949b6..0997e7a 100644
--- a/language-data.json
+++ b/language-data.json
@@ -652,6 +652,23 @@
             ],
             "Lai holh"
         ],
+        "cnr": [
+            "cnr-latn"
+        ],
+        "cnr-cyrl": [
+            "Cyrl",
+            [
+                "EU"
+            ],
+            "црногорски"
+        ],
+        "cnr-latn": [
+            "Latn",
+            [
+                "EU"
+            ],
+            "crnogorski"
+        ],
         "co": [
             "Latn",
             [