diff --git a/conf/.env b/conf/.env
index f5279ed..a8d9d80 100644
--- a/conf/.env
+++ b/conf/.env
@@ -54,8 +54,8 @@ AWS_S3_ACL=private
 #
 # When configuring the Client ID, add a redirect URL under "OAuth & Permissions":
 # https://<URL>/auth/slack.callback
-SLACK_KEY=__SLACK_KEY__
-SLACK_SECRET=__SLACK_SECRET__
+SLACK_KEY=
+SLACK_SECRET=
 
 # To configure Google auth, you'll need to create an OAuth Client ID at
 # => https://console.cloud.google.com/apis/credentials
diff --git a/scripts/backup b/scripts/backup
index aa826ad..e01aa26 100755
--- a/scripts/backup
+++ b/scripts/backup
@@ -34,8 +34,6 @@ path_url=$(ynh_app_setting_get --app=$app --key=path_url)
 port=$(ynh_app_setting_get --app=$app --key=port)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 language_key=$(ynh_app_setting_get --app=$app --key=language_key)
-slack_key=$(ynh_app_setting_get --app=$app --key=slack_key)
-slack_secret=$(ynh_app_setting_get --app=$app --key=slack_secret)
 secret_key=$(ynh_app_setting_get --app=$app --key=secret_key)
 utils_secret=$(ynh_app_setting_get --app=$app --key=utils_secret)
 minio_domain=$(ynh_app_setting_get --app="minio" --key=domain)
diff --git a/scripts/change_url b/scripts/change_url
index 84a524e..ee08283 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -33,8 +33,6 @@ path_url=$(ynh_app_setting_get --app=$app --key=path_url)
 port=$(ynh_app_setting_get --app=$app --key=port)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 language_key=$(ynh_app_setting_get --app=$app --key=language_key)
-slack_key=$(ynh_app_setting_get --app=$app --key=slack_key)
-slack_secret=$(ynh_app_setting_get --app=$app --key=slack_secret)
 secret_key=$(ynh_app_setting_get --app=$app --key=secret_key)
 utils_secret=$(ynh_app_setting_get --app=$app --key=utils_secret)
 minio_domain=$(ynh_app_setting_get --app="minio" --key=domain)
diff --git a/scripts/install b/scripts/install
index 05b8ba6..11107d8 100755
--- a/scripts/install
+++ b/scripts/install
@@ -41,9 +41,6 @@ fi
 secret_key=$(ynh_hex_32_random)
 utils_secret=$(ynh_hex_32_random)
 
-slack_key=$YNH_APP_ARG_SLACK_KEY
-slack_secret=$YNH_APP_ARG_SLACK_SECRET
-
 app=$YNH_APP_INSTANCE_NAME
 
 #=================================================
diff --git a/scripts/remove b/scripts/remove
index 7fc17c9..e21ffe0 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -21,8 +21,6 @@ domain=$(ynh_app_setting_get --app=$app --key=domain)
 path_url=$(ynh_app_setting_get --app=$app --key=path_url)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 language_key=$(ynh_app_setting_get --app=$app --key=language_key)
-slack_key=$(ynh_app_setting_get --app=$app --key=slack_key)
-slack_secret=$(ynh_app_setting_get --app=$app --key=slack_secret)
 secret_key=$(ynh_app_setting_get --app=$app --key=secret_key)
 utils_secret=$(ynh_app_setting_get --app=$app --key=utils_secret)
 
diff --git a/scripts/restore b/scripts/restore
index 6f6687c..1248883 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -43,8 +43,6 @@ path_url=$(ynh_app_setting_get --app=$app --key=path_url)
 port=$(ynh_app_setting_get --app=$app --key=port)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 language_key=$(ynh_app_setting_get --app=$app --key=language_key)
-slack_key=$(ynh_app_setting_get --app=$app --key=slack_key)
-slack_secret=$(ynh_app_setting_get --app=$app --key=slack_secret)
 secret_key=$(ynh_app_setting_get --app=$app --key=secret_key)
 utils_secret=$(ynh_app_setting_get --app=$app --key=utils_secret)
 minio_domain=$(ynh_app_setting_get --app="minio" --key=domain)
diff --git a/scripts/upgrade b/scripts/upgrade
index 14abc17..467fe7d 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -22,8 +22,6 @@ path_url=$(ynh_app_setting_get --app=$app --key=path_url)
 port=$(ynh_app_setting_get --app=$app --key=port)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 language_key=$(ynh_app_setting_get --app=$app --key=language_key)
-slack_key=$(ynh_app_setting_get --app=$app --key=slack_key)
-slack_secret=$(ynh_app_setting_get --app=$app --key=slack_secret)
 secret_key=$(ynh_app_setting_get --app=$app --key=secret_key)
 utils_secret=$(ynh_app_setting_get --app=$app --key=utils_secret)
 minio_domain=$(ynh_app_setting_get --app="minio" --key=domain)