diff --git a/docker-compose.delve.yml b/docker-compose.delve.yml
index 1a4a8c7..c342abc 100644
--- a/docker-compose.delve.yml
+++ b/docker-compose.delve.yml
@@ -58,7 +58,7 @@ services:
     command:
       - '--config.file=/etc/prometheus/prometheus.yml'
       - '--storage.tsdb.path=/prometheus'
-      - '--storage.tsdb.retention=20d'
+      - '--storage.tsdb.retention.time=20d'
       - '--web.console.libraries=/usr/share/prometheus/console_libraries'
       - '--web.console.templates=/usr/share/prometheus/consoles'
     ports:
diff --git a/docker-compose.dev.yml b/docker-compose.dev.yml
index ab2abc9..894335b 100644
--- a/docker-compose.dev.yml
+++ b/docker-compose.dev.yml
@@ -53,7 +53,7 @@ services:
     command:
       - '--config.file=/etc/prometheus/prometheus.yml'
       - '--storage.tsdb.path=/prometheus'
-      - '--storage.tsdb.retention=20d'
+      - '--storage.tsdb.retention.time=20d'
       - '--web.console.libraries=/usr/share/prometheus/console_libraries'
       - '--web.console.templates=/usr/share/prometheus/consoles'
     ports:
diff --git a/docker-compose.local.yml b/docker-compose.local.yml
index 57e45c9..1d3c07b 100644
--- a/docker-compose.local.yml
+++ b/docker-compose.local.yml
@@ -34,7 +34,7 @@ services:
     command:
       - '--config.file=/etc/prometheus/prometheus.yml'
       - '--storage.tsdb.path=/prometheus'
-      - '--storage.tsdb.retention=20d'
+      - '--storage.tsdb.retention.time=20d'
       - '--web.console.libraries=/usr/share/prometheus/console_libraries'
       - '--web.console.templates=/usr/share/prometheus/consoles'
     ports: