diff --git a/.github/scripts/run-pre-trained-conformer-ctc.sh b/.github/scripts/run-pre-trained-conformer-ctc.sh
index 06efa8438..a82d85fb2 100755
--- a/.github/scripts/run-pre-trained-conformer-ctc.sh
+++ b/.github/scripts/run-pre-trained-conformer-ctc.sh
@@ -10,16 +10,30 @@ log() {
 
 cd egs/librispeech/ASR
 
-repo_url=https://github.com/csukuangfj/icefall-asr-conformer-ctc-bpe-500
-git lfs install
-
+# repo_url=https://github.com/csukuangfj/icefall-asr-conformer-ctc-bpe-500
+repo_url=https://huggingface.co/csukuangfj/icefall-asr-librispeech-conformer-ctc-jit-bpe-500-2021-11-09
 log "Downloading pre-trained model from $repo_url"
-git clone $repo_url
+GIT_LFS_SKIP_SMUDGE=1 git clone $repo_url
 repo=$(basename $repo_url)
+pushd $repo
+
+git lfs pull --include "exp/pretrained.pt"
+git lfs pull --include "data/lang_bpe_500/HLG.pt"
+git lfs pull --include "data/lang_bpe_500/L.pt"
+git lfs pull --include "data/lang_bpe_500/L_disambig.pt"
+git lfs pull --include "data/lang_bpe_500/Linv.pt"
+git lfs pull --include "data/lang_bpe_500/bpe.model"
+git lfs pull --include "data/lang_bpe_500/lexicon.txt"
+git lfs pull --include "data/lang_bpe_500/lexicon_disambig.txt"
+git lfs pull --include "data/lang_bpe_500/tokens.txt"
+git lfs pull --include "data/lang_bpe_500/words.txt"
+git lfs pull --include "data/lm/G_3_gram.fst.txt"
+
+popd
 
 log "Display test files"
 tree $repo/
-ls -lh $repo/test_wavs/*.flac
+ls -lh $repo/test_wavs/*.wav
 
 log "CTC decoding"
 
@@ -28,9 +42,9 @@ log "CTC decoding"
   --num-classes 500 \
   --checkpoint $repo/exp/pretrained.pt \
   --tokens $repo/data/lang_bpe_500/tokens.txt \
-  $repo/test_wavs/1089-134686-0001.flac \
-  $repo/test_wavs/1221-135766-0001.flac \
-  $repo/test_wavs/1221-135766-0002.flac
+  $repo/test_wavs/1089-134686-0001.wav \
+  $repo/test_wavs/1221-135766-0001.wav \
+  $repo/test_wavs/1221-135766-0002.wav
 
 log "HLG decoding"
 
@@ -41,9 +55,9 @@ log "HLG decoding"
   --tokens $repo/data/lang_bpe_500/tokens.txt \
   --words-file $repo/data/lang_bpe_500/words.txt \
   --HLG $repo/data/lang_bpe_500/HLG.pt \
-  $repo/test_wavs/1089-134686-0001.flac \
-  $repo/test_wavs/1221-135766-0001.flac \
-  $repo/test_wavs/1221-135766-0002.flac
+  $repo/test_wavs/1089-134686-0001.wav \
+  $repo/test_wavs/1221-135766-0001.wav \
+  $repo/test_wavs/1221-135766-0002.wav
 
 log "CTC decoding on CPU with kaldi decoders using OpenFst"
 
@@ -65,7 +79,8 @@ ls -lh $repo/exp
 
 log "Generating H.fst, HL.fst"
 
-./local/prepare_lang_fst.py  --lang-dir $repo/data/lang_bpe_500
+./local/prepare_lang_fst.py  --lang-dir $repo/data/lang_bpe_500 --ngram-G $repo/data/lm/G_3_gram.fst.txt
+
 ls -lh $repo/data/lang_bpe_500
 
 log "Decoding with H on CPU with OpenFst"
@@ -74,9 +89,9 @@ log "Decoding with H on CPU with OpenFst"
   --nn-model $repo/exp/cpu_jit.pt \
   --H $repo/data/lang_bpe_500/H.fst \
   --tokens $repo/data/lang_bpe_500/tokens.txt \
-  $repo/test_wavs/1089-134686-0001.flac \
-  $repo/test_wavs/1221-135766-0001.flac \
-  $repo/test_wavs/1221-135766-0002.flac
+  $repo/test_wavs/1089-134686-0001.wav \
+  $repo/test_wavs/1221-135766-0001.wav \
+  $repo/test_wavs/1221-135766-0002.wav
 
 log "Decoding with HL on CPU with OpenFst"
 
@@ -84,9 +99,9 @@ log "Decoding with HL on CPU with OpenFst"
   --nn-model $repo/exp/cpu_jit.pt \
   --HL $repo/data/lang_bpe_500/HL.fst \
   --words $repo/data/lang_bpe_500/words.txt \
-  $repo/test_wavs/1089-134686-0001.flac \
-  $repo/test_wavs/1221-135766-0001.flac \
-  $repo/test_wavs/1221-135766-0002.flac
+  $repo/test_wavs/1089-134686-0001.wav \
+  $repo/test_wavs/1221-135766-0001.wav \
+  $repo/test_wavs/1221-135766-0002.wav
 
 log "Decoding with HLG on CPU with OpenFst"
 
@@ -94,6 +109,6 @@ log "Decoding with HLG on CPU with OpenFst"
   --nn-model $repo/exp/cpu_jit.pt \
   --HLG $repo/data/lang_bpe_500/HLG.fst \
   --words $repo/data/lang_bpe_500/words.txt \
-  $repo/test_wavs/1089-134686-0001.flac \
-  $repo/test_wavs/1221-135766-0001.flac \
-  $repo/test_wavs/1221-135766-0002.flac
+  $repo/test_wavs/1089-134686-0001.wav \
+  $repo/test_wavs/1221-135766-0001.wav \
+  $repo/test_wavs/1221-135766-0002.wav