diff --git a/completion/available/pip.completion.bash b/completion/available/pip.completion.bash
index ad3abb7e..24494df7 100644
--- a/completion/available/pip.completion.bash
+++ b/completion/available/pip.completion.bash
@@ -1,11 +1,2 @@
-
-# pip bash completion start
-_pip_completion()
-{
-    COMPREPLY=( $( COMP_WORDS="${COMP_WORDS[*]}" \
-                   COMP_CWORD=$COMP_CWORD \
-                   PIP_AUTO_COMPLETE=1 $1 ) )
-}
-complete -o default -F _pip_completion pip
-# pip bash completion end
-
+# https://pip.pypa.io/en/stable/user_guide/#command-completion
+eval "$(pip completion --bash)"
diff --git a/completion/available/pip3.completion.bash b/completion/available/pip3.completion.bash
index 1800756b..68245ac1 100644
--- a/completion/available/pip3.completion.bash
+++ b/completion/available/pip3.completion.bash
@@ -1,11 +1,2 @@
-
-# pip bash completion start
-_pip_completion()
-{
-    COMPREPLY=( $( COMP_WORDS="${COMP_WORDS[*]}" \
-                   COMP_CWORD=$COMP_CWORD \
-                   PIP_AUTO_COMPLETE=1 $1 ) )
-}
-complete -o default -F _pip_completion pip3
-# pip bash completion end
-
+# https://pip.pypa.io/en/stable/user_guide/#command-completion
+eval "$(pip3 completion --bash)"