diff --git a/README.md b/README.md
index 3b8f0da..bbfd6f8 100644
--- a/README.md
+++ b/README.md
@@ -37,10 +37,15 @@ jobs:
       - uses: codelytv/pr-size-labeler@v1
         with:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          xs_label: 'size/xs'
           xs_max_size: '10'
+          s_label: 'size/s'
           s_max_size: '100'
+          m_label: 'size/m'
           m_max_size: '500'
+          l_label: 'size/l'
           l_max_size: '1000'
+          xl_label: 'size/xl'
           fail_if_xl: 'false'
           message_if_xl: >
             'This PR exceeds the recommended size of 1000 lines.
@@ -51,6 +56,7 @@ jobs:
 
 ## 🎛️ Available parameters
 
+- `*_label` (`xs_label`, `s_label`…): Adjust size label names
 - `*_max_size` (`xs_max_size`, `s_max_size`…): Adjust which amount of changes you consider appropriate for each size based on your project context
 - `fail_if_xl`: Set to `'true'` will report GitHub Workflow failure if the PR size is xl allowing to forbid PR merge
 - `github_api_url`: Override this parameter in order to use with your own GitHub Enterprise Server. Example: `'github.example.com/api/v3'`
diff --git a/action.yml b/action.yml
index 6505633..2b74e0f 100644
--- a/action.yml
+++ b/action.yml
@@ -4,22 +4,42 @@ inputs:
   GITHUB_TOKEN:
     description: 'GitHub token'
     required: true
+  xs_label:
+    description: 'Label for xs PR'
+    required: false
+    default: 'size/xs'
   xs_max_size:
     description: 'Max size for a PR to be considered xs'
     required: false
     default: '10'
+  s_label:
+    description: 'Label for s PR'
+    required: false
+    default: 'size/s'
   s_max_size:
     description: 'Max size for a PR to be considered s'
     required: false
     default: '100'
+  m_label:
+    description: 'Label for m PR'
+    required: false
+    default: 'size/m'
   m_max_size:
     description: 'Max size for a PR to be considered m'
     required: false
     default: '500'
+  l_label:
+    description: 'Label for l PR'
+    required: false
+    default: 'size/l'
   l_max_size:
     description: 'Max size for a PR to be considered l'
     required: false
     default: '1000'
+  xl_label:
+    description: 'Label for xl PR'
+    required: false
+    default: 'size/xl'
   fail_if_xl:
     description: 'Report GitHub Workflow failure if the PR size is xl allowing to forbid PR merge'
     required: false
@@ -40,10 +60,15 @@ runs:
   image: 'Dockerfile'
   args:
     - ${{ inputs.GITHUB_TOKEN }}
+    - ${{ inputs.xs_label }}
     - ${{ inputs.xs_max_size }}
+    - ${{ inputs.s_label }}
     - ${{ inputs.s_max_size }}
+    - ${{ inputs.m_label }}
     - ${{ inputs.m_max_size }}
+    - ${{ inputs.l_label }}
     - ${{ inputs.l_max_size }}
+    - ${{ inputs.xl_label }}
     - ${{ inputs.fail_if_xl }}
     - ${{ inputs.message_if_xl }}
     - ${{ inputs.github_api_url }}
diff --git a/entrypoint.sh b/entrypoint.sh
index c5ceb99..242a3a6 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -8,8 +8,8 @@ if [ "$PR_SIZE_LABELER_HOME" == "/" ]; then
   PR_SIZE_LABELER_HOME=""
 fi
 
-if [ ! -z "$8" ]; then
-    PR_SIZE_LABELER_API=$8
+if [ ! -z "${13}" ]; then
+    PR_SIZE_LABELER_API="${13}"
 fi
 
 export PR_SIZE_LABELER_HOME
diff --git a/src/github.sh b/src/github.sh
index 8b445ec..74e8beb 100644
--- a/src/github.sh
+++ b/src/github.sh
@@ -13,11 +13,16 @@ github::calculate_total_modifications() {
 }
 
 github::add_label_to_pr() {
-  local -r pr_number=$1
-  local -r label_to_add=$2
+  local -r pr_number="${1}"
+  local -r label_to_add="${2}"
+  local -r xs_label="${3}"
+  local -r s_label="${4}"
+  local -r m_label="${5}"
+  local -r l_label="${6}"
+  local -r xl_label="${7}"
 
   local -r body=$(curl -sSL -H "Authorization: token $GITHUB_TOKEN" -H "$GITHUB_API_HEADER" "$GITHUB_API_URI/repos/$GITHUB_REPOSITORY/pulls/$1")
-  local labels=$(echo "$body" | jq .labels | jq -r ".[] | .name" | grep -v "size/")
+  local labels=$(echo "$body" | jq .labels | jq -r ".[] | .name" | grep -e "$xs_label" -e "$s_label" -e "$m_label" -e "$l_label" -e "$xl_label" -v)
   labels=$(printf "%s\n%s" "$labels" "$label_to_add")
   local -r comma_separated_labels=$(github::format_labels "$labels")
 
diff --git a/src/labeler.sh b/src/labeler.sh
index aa5f161..cab116e 100644
--- a/src/labeler.sh
+++ b/src/labeler.sh
@@ -1,8 +1,13 @@
 #!/usr/bin/env bash
 
 labeler::label() {
-  local -r fail_if_xl="$5"
-  local -r message_if_xl="$6"
+  local -r xs_label="${1}"
+  local -r s_label="${3}"
+  local -r m_label="${5}"
+  local -r l_label="${7}"
+  local -r xl_label="${9}"
+  local -r fail_if_xl="${10}"
+  local -r message_if_xl="${11}"
 
   local -r pr_number=$(github_actions::get_pr_number)
   local -r total_modifications=$(github::calculate_total_modifications "$pr_number")
@@ -13,9 +18,9 @@ labeler::label() {
 
   log::message "Labeling pull request with $label_to_add"
 
-  github::add_label_to_pr "$pr_number" "$label_to_add"
+  github::add_label_to_pr "$pr_number" "$label_to_add" "$xs_label" "$s_label" "$m_label" "$l_label" "$xl_label"
 
-  if [ "$label_to_add" == "size/xl" ]; then
+  if [ "$label_to_add" == "$xl_label" ]; then
     if [ -n "$message_if_xl" ]; then
       github::comment "$message_if_xl"
     fi
@@ -28,22 +33,27 @@ labeler::label() {
 }
 
 labeler::label_for() {
-  local -r total_modifications="$1"
-  local -r xs_max_size="$2"
-  local -r s_max_size="$3"
-  local -r m_max_size="$4"
-  local -r l_max_size="$5"
+  local -r total_modifications="${1}"
+  local -r xs_label="${2}"
+  local -r xs_max_size="${3}"
+  local -r s_label="${4}"
+  local -r s_max_size="${5}"
+  local -r m_label="${6}"
+  local -r m_max_size="${7}"
+  local -r l_label="${8}"
+  local -r l_max_size="${9}"
+  local -r xl_label="${10}"
 
   if [ "$total_modifications" -lt "$xs_max_size" ]; then
-    label="size/xs"
+    label="$xs_label"
   elif [ "$total_modifications" -lt "$s_max_size" ]; then
-    label="size/s"
+    label="$s_label"
   elif [ "$total_modifications" -lt "$m_max_size" ]; then
-    label="size/m"
+    label="$m_label"
   elif [ "$total_modifications" -lt "$l_max_size" ]; then
-    label="size/l"
+    label="$l_label"
   else
-    label="size/xl"
+    label="$xl_label"
   fi
 
   echo "$label"
diff --git a/src/main.sh b/src/main.sh
index cefdf70..874d56d 100644
--- a/src/main.sh
+++ b/src/main.sh
@@ -9,11 +9,11 @@ source "$PR_SIZE_LABELER_HOME/src/misc.sh"
 main() {
   ensure::env_variable_exist "GITHUB_REPOSITORY"
   ensure::env_variable_exist "GITHUB_EVENT_PATH"
-  ensure::total_args 8 "$@"
+  ensure::total_args 13 "$@"
 
-  export GITHUB_TOKEN="$1"
+  export GITHUB_TOKEN="${1}"
 
-  labeler::label "$2" "$3" "$4" "$5" "$6" "$7"
+  labeler::label "${2}" "${3}" "${4}" "${5}" "${6}" "${7}" "${8}" "${9}" "${10}" "${11}" "${12}"
 
   exit $?
 }