diff --git a/p2p/simulations/network.go b/p2p/simulations/network.go
index 9e6e6c8763..aa9ec60fdc 100644
--- a/p2p/simulations/network.go
+++ b/p2p/simulations/network.go
@@ -373,16 +373,16 @@ func (net *Network) DidReceive(sender, receiver enode.ID, proto string, code uin
 // GetNode gets the node with the given ID, returning nil if the node does not
 // exist
 func (net *Network) GetNode(id enode.ID) *Node {
-	net.lock.Lock()
-	defer net.lock.Unlock()
+	net.lock.RLock()
+	defer net.lock.RUnlock()
 	return net.getNode(id)
 }
 
 // GetNode gets the node with the given name, returning nil if the node does
 // not exist
 func (net *Network) GetNodeByName(name string) *Node {
-	net.lock.Lock()
-	defer net.lock.Unlock()
+	net.lock.RLock()
+	defer net.lock.RUnlock()
 	return net.getNodeByName(name)
 }
 
@@ -397,8 +397,8 @@ func (net *Network) getNodeByName(name string) *Node {
 
 // GetNodes returns the existing nodes
 func (net *Network) GetNodes() (nodes []*Node) {
-	net.lock.Lock()
-	defer net.lock.Unlock()
+	net.lock.RLock()
+	defer net.lock.RUnlock()
 
 	nodes = append(nodes, net.Nodes...)
 	return nodes
@@ -471,8 +471,8 @@ func filterIDs(ids []enode.ID, excludeIDs []enode.ID) []enode.ID {
 // GetConn returns the connection which exists between "one" and "other"
 // regardless of which node initiated the connection
 func (net *Network) GetConn(oneID, otherID enode.ID) *Conn {
-	net.lock.Lock()
-	defer net.lock.Unlock()
+	net.lock.RLock()
+	defer net.lock.RUnlock()
 	return net.getConn(oneID, otherID)
 }