diff --git a/examples/udp_s7phyrgmii.yml b/examples/udp_s7phyrgmii.yml
index 7b7c962..badae13 100644
--- a/examples/udp_s7phyrgmii.yml
+++ b/examples/udp_s7phyrgmii.yml
@@ -5,7 +5,7 @@
 phy:         LiteEthS7PHYRGMII
 vendor:      xilinx
 # Core ---------------------------------------------------------------------
-clk_freq:    100e6
+clk_freq:    125e6
 core:        udp
 mac_address: 0x10e2d5000000
 ip_address:  192.168.1.50