diff --git a/spiOverJtag/constr_xc7k_ffg676.xdc b/spiOverJtag/constr_xc7k_ffg676.xdc
index b64bfdf..ff94c1b 100644
--- a/spiOverJtag/constr_xc7k_ffg676.xdc
+++ b/spiOverJtag/constr_xc7k_ffg676.xdc
@@ -1,5 +1,7 @@
 set_property CFGBVS VCCO [current_design]
 set_property CONFIG_VOLTAGE 3.3 [current_design]
+set_property BITSTREAM.GENERAL.COMPRESS TRUE [current_design]
+set_property BITSTREAM.CONFIG.CONFIGRATE 33 [current_design]
 set_property BITSTREAM.CONFIG.SPI_BUSWIDTH {4} [current_design]
 
 set_property -dict {PACKAGE_PIN C23 IOSTANDARD LVTTL} [get_ports {csn}]
diff --git a/spiOverJtag/constr_xc7k_ffg900.xdc b/spiOverJtag/constr_xc7k_ffg900.xdc
index b76a60c..bfe493f 100644
--- a/spiOverJtag/constr_xc7k_ffg900.xdc
+++ b/spiOverJtag/constr_xc7k_ffg900.xdc
@@ -1,5 +1,7 @@
 set_property CFGBVS VCCO [current_design]
 set_property CONFIG_VOLTAGE 3.3 [current_design]
+set_property BITSTREAM.GENERAL.COMPRESS TRUE [current_design]
+set_property BITSTREAM.CONFIG.CONFIGRATE 33 [current_design]
 set_property BITSTREAM.CONFIG.SPI_BUSWIDTH {4} [current_design]
 
 set_property -dict {PACKAGE_PIN U19 IOSTANDARD LVTTL} [get_ports {csn}]
diff --git a/spiOverJtag/spiOverJtag_xc7k325tffg676.bit.gz b/spiOverJtag/spiOverJtag_xc7k325tffg676.bit.gz
index 4df3112..b7a838f 100644
Binary files a/spiOverJtag/spiOverJtag_xc7k325tffg676.bit.gz and b/spiOverJtag/spiOverJtag_xc7k325tffg676.bit.gz differ
diff --git a/spiOverJtag/spiOverJtag_xc7k325tffg900.bit.gz b/spiOverJtag/spiOverJtag_xc7k325tffg900.bit.gz
index 4df3112..e471059 100644
Binary files a/spiOverJtag/spiOverJtag_xc7k325tffg900.bit.gz and b/spiOverJtag/spiOverJtag_xc7k325tffg900.bit.gz differ