diff --git a/action.yml b/action.yml
index e69c10e..b1b6cd6 100644
--- a/action.yml
+++ b/action.yml
@@ -21,8 +21,6 @@ inputs:
   args:
     description: Extra arguments to be passed to the LaTeX engine
     default: "-pdf -file-line-error -halt-on-error -interaction=nonstopmode"
-  extra_packages:
-    description: "[Deprecated] Install extra packages by tlmgr"
   extra_system_packages:
     description: Install extra packages by apk
   extra_fonts:
@@ -52,7 +50,6 @@ runs:
           "${{ inputs.continue_on_error }}" \
           "${{ inputs.compiler }}" \
           "${{ inputs.args }}" \
-          "${{ inputs.extra_packages }}" \
           "${{ inputs.extra_system_packages }}" \
           "${{ inputs.extra_fonts }}" \
           "${{ inputs.pre_compile }}" \
diff --git a/entrypoint.sh b/entrypoint.sh
index 64626df..0823fe9 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -22,14 +22,13 @@ work_in_root_file_dir="${3}"
 continue_on_error="${4}"
 compiler="${5}"
 args="${6}"
-extra_packages="${7}"
-extra_system_packages="${8}"
-extra_fonts="${9}"
-pre_compile="${10}"
-post_compile="${11}"
-latexmk_shell_escape="${12}"
-latexmk_use_lualatex="${13}"
-latexmk_use_xelatex="${14}"
+extra_system_packages="${7}"
+extra_fonts="${8}"
+pre_compile="${9}"
+post_compile="${10}"
+latexmk_shell_escape="${11}"
+latexmk_use_lualatex="${12}"
+latexmk_use_xelatex="${13}"
 
 # install git on old images
 if ! command -v git &>/dev/null; then
@@ -53,7 +52,7 @@ fi
 expanded_root_file=()
 for pattern in "${root_file[@]}"; do
   # shellcheck disable=SC2206
-  expanded=( $pattern )
+  expanded=($pattern)
   expanded_root_file+=("${expanded[@]}")
 done
 root_file=("${expanded_root_file[@]}")
@@ -122,7 +121,7 @@ if [[ -n "$extra_fonts" ]]; then
   expanded_extra_fonts=()
   for pattern in "${extra_fonts[@]}"; do
     # shellcheck disable=SC2206
-    expanded=( $pattern )
+    expanded=($pattern)
     expanded_extra_fonts+=("${expanded[@]}")
   done
   extra_fonts=("${expanded_extra_fonts[@]}")
@@ -141,10 +140,6 @@ if [[ -n "$extra_fonts" ]]; then
   fc-cache -fv
 fi
 
-if [[ -n "$extra_packages" ]]; then
-  warn "Input 'extra_packages' is deprecated. We now build LaTeX document with full TeXLive installed."
-fi
-
 if [[ -n "$pre_compile" ]]; then
   info "Run pre compile commands"
   eval "$pre_compile"