diff --git a/llama_cpp/llama_cpp.py b/llama_cpp/llama_cpp.py
index 8158eb2..74c0935 100644
--- a/llama_cpp/llama_cpp.py
+++ b/llama_cpp/llama_cpp.py
@@ -339,7 +339,7 @@ class llama_model_params(Structure):
 #     // ref: https://github.com/ggerganov/llama.cpp/pull/2054
 #     float    rope_freq_base;   // RoPE base frequency, 0 = from model
 #     float    rope_freq_scale;  // RoPE frequency scaling factor, 0 = from model
-#     float    yarn_ext_factor;  // YaRN extrapolation mix factor, NaN = from model
+#     float    yarn_ext_factor;  // YaRN extrapolation mix factor, negative = from model
 #     float    yarn_attn_factor; // YaRN magnitude scaling factor
 #     float    yarn_beta_fast;   // YaRN low correction dim
 #     float    yarn_beta_slow;   // YaRN high correction dim
diff --git a/vendor/llama.cpp b/vendor/llama.cpp
index 6b0a742..3e73d31 160000
--- a/vendor/llama.cpp
+++ b/vendor/llama.cpp
@@ -1 +1 @@
-Subproject commit 6b0a7420d03b9d13cb0e9439a01ce8476d8bf093
+Subproject commit 3e73d31d9cc0232882ce61c64742aff3ecfec416