diff --git a/README.md b/README.md
index a988a42..a3102fd 100644
--- a/README.md
+++ b/README.md
@@ -39,6 +39,7 @@ more details, including on how to concatenate multi-part files.
 | [GGUF](https://huggingface.co/mradermacher/Apertus-8B-FF-1601-GGUF/resolve/main/Apertus-8B-FF-1601.Q2_K.gguf) | Q2_K | 3.4 |  |
 | [GGUF](https://huggingface.co/mradermacher/Apertus-8B-FF-1601-GGUF/resolve/main/Apertus-8B-FF-1601.Q3_K_S.gguf) | Q3_K_S | 3.8 |  |
 | [GGUF](https://huggingface.co/mradermacher/Apertus-8B-FF-1601-GGUF/resolve/main/Apertus-8B-FF-1601.Q3_K_M.gguf) | Q3_K_M | 4.3 | lower quality |
+| [GGUF](https://huggingface.co/mradermacher/Apertus-8B-FF-1601-GGUF/resolve/main/Apertus-8B-FF-1601.IQ4_XS.gguf) | IQ4_XS | 4.6 |  |
 | [GGUF](https://huggingface.co/mradermacher/Apertus-8B-FF-1601-GGUF/resolve/main/Apertus-8B-FF-1601.Q3_K_L.gguf) | Q3_K_L | 4.7 |  |
 | [GGUF](https://huggingface.co/mradermacher/Apertus-8B-FF-1601-GGUF/resolve/main/Apertus-8B-FF-1601.Q4_K_S.gguf) | Q4_K_S | 4.8 | fast, recommended |
 | [GGUF](https://huggingface.co/mradermacher/Apertus-8B-FF-1601-GGUF/resolve/main/Apertus-8B-FF-1601.Q4_K_M.gguf) | Q4_K_M | 5.2 | fast, recommended |