diff --git a/.changelog/23764.txt b/.changelog/23764.txt
new file mode 100644
index 000000000..8b8c1f393
--- /dev/null
+++ b/.changelog/23764.txt
@@ -0,0 +1,3 @@
+```release-note:bug
+cni: network.cni jobspec updates now replace allocs to apply the new network config
+```
diff --git a/scheduler/util.go b/scheduler/util.go
index 85a94addc..09d52b5a3 100644
--- a/scheduler/util.go
+++ b/scheduler/util.go
@@ -544,6 +544,10 @@ func networkUpdated(netA, netB []*structs.NetworkResource) comparison {
 			return difference("network dns", an.DNS, bn.DNS)
 		}
 
+		if !an.CNI.Equal(bn.CNI) {
+			return difference("network cni", an.CNI, bn.CNI)
+		}
+
 		aPorts, bPorts := networkPortMap(an), networkPortMap(bn)
 		if !aPorts.Equal(bPorts) {
 			return difference("network port map", aPorts, bPorts)