diff --git a/solvrtech/symfony-logbook/1.0/config/packages/logbook.yaml b/solvrtech/symfony-logbook/1.0/config/packages/logbook.yaml
index b471990c..34b0d9a7 100644
--- a/solvrtech/symfony-logbook/1.0/config/packages/logbook.yaml
+++ b/solvrtech/symfony-logbook/1.0/config/packages/logbook.yaml
@@ -1,18 +1,7 @@
 logbook:
     api:
         # The base url of logbook app.
-        url: "%env(LOGBOOK_API_URL)%"
+        url: ""
 
-        # The key of logbook client app.
-        key: "%env(LOGBOOK_API_KEY)%"
-
-    # The minimum log level allowed to be stored.
-    # DEBUG
-    # INFO
-    # NOTICE
-    # WARNING
-    # ERROR
-    # CRITICAL
-    # ALERT
-    # EMERGENCY
-    level: "%env(LOGBOOK_LEVEL)%"
+        # The API key of logbook client app.
+        key: ""
diff --git a/solvrtech/symfony-logbook/1.0/manifest.json b/solvrtech/symfony-logbook/1.0/manifest.json
index c154ee17..44b7e1be 100644
--- a/solvrtech/symfony-logbook/1.0/manifest.json
+++ b/solvrtech/symfony-logbook/1.0/manifest.json
@@ -4,10 +4,5 @@
     },
     "copy-from-recipe": {
         "config/": "%CONFIG_DIR%/"
-    },
-    "env": {
-        "LOGBOOK_API_URL": "Logbook API url",
-        "LOGBOOK_API_KEY": "Logbook API key",
-        "LOGBOOK_LEVEL": "ERROR"
     }
 }