diff --git a/Dockerfile b/Dockerfile
index 699f4dab..89625123 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -177,7 +177,7 @@ ENV VPN_SERVICE_PROVIDER=pia \
     BLOCK_MALICIOUS=on \
     BLOCK_SURVEILLANCE=off \
     BLOCK_ADS=off \
-    UNBLOCK= \
+    DNS_UNBLOCK_HOSTNAMES= \
     DNS_UPDATE_PERIOD=24h \
     DNS_ADDRESS=127.0.0.1 \
     DNS_KEEP_NAMESERVER=off \
diff --git a/internal/configuration/settings/dnsblacklist.go b/internal/configuration/settings/dnsblacklist.go
index 0d770329..44a2c319 100644
--- a/internal/configuration/settings/dnsblacklist.go
+++ b/internal/configuration/settings/dnsblacklist.go
@@ -154,7 +154,7 @@ func (b *DNSBlacklist) read(r *reader.Reader) (err error) {
 		return err
 	}
 
-	b.AllowedHosts = r.CSV("UNBLOCK") // TODO v4 change name
+	b.AllowedHosts = r.CSV("DNS_UNBLOCK_HOSTNAMES", reader.RetroKeys("UNBLOCK"))
 
 	return nil
 }
diff --git a/maintenance.md b/maintenance.md
index 6282b738..efc8d571 100644
--- a/maintenance.md
+++ b/maintenance.md
@@ -1,6 +1,5 @@
 # Maintenance
 
-- Rename `UNBLOCK` to `DNS_HOSTNAMES_UNBLOCKED`
 - Change `Run` methods to `Start`+`Stop`, returning channels rather than injecting them
 - Go 1.18
   - gofumpt