diff --git a/containers/Singularity/centos-8.def b/containers/Singularity/centos-8.def
index bb7ca7d8..50c69bd7 100644
--- a/containers/Singularity/centos-8.def
+++ b/containers/Singularity/centos-8.def
@@ -14,11 +14,8 @@ Include: dnf
     shadow-utils rsyslog tzdata util-linux words zlib tar less \
     gzip which util-linux openssh-clients openssh-server dhclient \
     pciutils vim-minimal shadow-utils strace cronie crontabs cpio \
-    wget centos-release ipmitool yum NetworkManager network-scripts
+    wget centos-release ipmitool yum network-scripts
 
-    systemctl disable NetworkManager
-    systemctl disable NetworkManager-dispatcher
-    systemctl disable NetworkManager-wait-online
     systemctl enable network-scripts
-    
+
     touch /etc/sysconfig/disable-deprecation-warnings
\ No newline at end of file
diff --git a/containers/Singularity/rocky-8.def b/containers/Singularity/rocky-8.def
index 6daa14e0..40a4048e 100644
--- a/containers/Singularity/rocky-8.def
+++ b/containers/Singularity/rocky-8.def
@@ -14,11 +14,8 @@ Include: dnf
     shadow-utils rsyslog tzdata util-linux words zlib tar less \
     gzip which util-linux openssh-clients openssh-server dhclient \
     pciutils vim-minimal shadow-utils strace cronie crontabs cpio \
-    wget rocky-release ipmitool yum NetworkManager network-scripts
+    wget rocky-release ipmitool yum network-scripts
 
-    systemctl disable NetworkManager
-    systemctl disable NetworkManager-dispatcher
-    systemctl disable NetworkManager-wait-online
     systemctl enable network-scripts
-    
+
     touch /etc/sysconfig/disable-deprecation-warnings
\ No newline at end of file