diff --git a/.github/workflows/docker-image.yml b/.github/workflows/docker-image.yml
index 8db7563..a6b63da 100644
--- a/.github/workflows/docker-image.yml
+++ b/.github/workflows/docker-image.yml
@@ -14,8 +14,6 @@ jobs:
     steps:
       - name: 'Checkout git repo'
         uses: actions/checkout@v1
-      - name: Install xz-utils
-        run: sudo apt-get update && sudo apt-get install -y xz-utils
       - name: Extract branch or tag name
         # The GITHUB_REF variable is like "refs/head/branch_name" or
         # "refs/tag/tag_name". If the tag is prefixed with v, this is a new
@@ -38,8 +36,6 @@ jobs:
     steps:
       - name: 'Checkout git repo'
         uses: actions/checkout@v1
-      - name: Install xz-utils
-        run: sudo apt-get update && sudo apt-get install -y xz-utils
       - name: Extract branch or tag name
         # The GITHUB_REF variable is like "refs/head/branch_name"
         # The format of image tag is e.g. v0.12_grch38_ensembl95
diff --git a/scripts/import_mongo.sh b/scripts/import_mongo.sh
index 75f8e82..fc9b8ef 100755
--- a/scripts/import_mongo.sh
+++ b/scripts/import_mongo.sh
@@ -59,15 +59,11 @@ curl https://genome-nexus-static-data.s3.amazonaws.com/mutationassessor4_for_gen
 echo "Download completed."
 
 echo "Extracting Mutation assessor data"
-apt install -y xz-utils
-echo xz-utils version
-exho $(xz --version)
-xz -k ${DIR}/../data/common_input/mutationassessor4_for_genome_nexus.tsv.xz
+gunzip ${DIR}/../data/common_input/mutationassessor4_for_genome_nexus.tsv.gz
 
 echo "Transforming Mutation assessor data"
 sed -i '' 's/uniprotId\tSV\thgvspShort\tF_score\tF_impact\tMSA\tMAV/uniprotId\tsv\thgvspShort\tf_score\tf_impact\tmsa\tmav/' ${DIR}/../data/common_input/mutationassessor4_for_genome_nexus.tsv
 awk -F'\t' 'BEGIN{OFS="\t"} NR==1{print "_id",$0; next} {print $1","$3,$0}' ${DIR}/../data/common_input/mutationassessor4_for_genome_nexus.tsv > processed_mutaiton_assessor_tsv_file.tsv
-rm ${DIR}/../data/common_input/mutationassessor4_for_genome_nexus.tsv.xz
 rm ${DIR}/../data/common_input/mutationassessor4_for_genome_nexus.tsv
 
 echo "Importing Mutation assessor data"