diff --git a/units/systemd-bootctl.socket b/units/systemd-bootctl.socket
index 59151ba161..d4071833b6 100644
--- a/units/systemd-bootctl.socket
+++ b/units/systemd-bootctl.socket
@@ -19,3 +19,4 @@ ListenStream=/run/systemd/io.systemd.BootControl
 FileDescriptorName=varlink
 SocketMode=0600
 Accept=yes
+MaxConnectionsPerSource=16
diff --git a/units/systemd-mute-console.socket b/units/systemd-mute-console.socket
index 6223dc033c..16032e94b4 100644
--- a/units/systemd-mute-console.socket
+++ b/units/systemd-mute-console.socket
@@ -20,3 +20,4 @@ ListenStream=/run/systemd/io.systemd.MuteConsole
 FileDescriptorName=varlink
 SocketMode=0600
 Accept=yes
+MaxConnectionsPerSource=16
diff --git a/units/systemd-pcrlock.socket b/units/systemd-pcrlock.socket
index 17a56f7eb3..ca1cd53aea 100644
--- a/units/systemd-pcrlock.socket
+++ b/units/systemd-pcrlock.socket
@@ -20,6 +20,7 @@ ListenStream=/run/systemd/io.systemd.PCRLock
 FileDescriptorName=varlink
 SocketMode=0600
 Accept=yes
+MaxConnectionsPerSource=16
 
 [Install]
 WantedBy=sockets.target
diff --git a/units/systemd-repart.socket b/units/systemd-repart.socket
index 0c77165e1c..c9fc308b1b 100644
--- a/units/systemd-repart.socket
+++ b/units/systemd-repart.socket
@@ -20,3 +20,4 @@ ListenStream=/run/systemd/io.systemd.Repart
 FileDescriptorName=varlink
 SocketMode=0600
 Accept=yes
+MaxConnectionsPerSource=16