Index: tests/sys/netpfil/pf/checksum.sh
===================================================================
--- tests/sys/netpfil/pf/checksum.sh
+++ tests/sys/netpfil/pf/checksum.sh
@@ -32,6 +32,7 @@
 {
 	atf_set descr 'Test unaligned checksum updates'
 	atf_set require.user root
+	atf_set require.progs python3
 }
 
 unaligned_body()
Index: tests/sys/netpfil/pf/dup.sh
===================================================================
--- tests/sys/netpfil/pf/dup.sh
+++ tests/sys/netpfil/pf/dup.sh
@@ -30,10 +30,11 @@
 common_dir=$(atf_get_srcdir)/../common
 
 atf_test_case "dup_to" "cleanup"
-do_to_head()
+dup_to_head()
 {
 	atf_set descr 'dup-to test'
 	atf_set require.user root
+	atf_set require.progs python3
 }
 
 dup_to_body()
Index: tests/sys/netpfil/pf/fragmentation.sh
===================================================================
--- tests/sys/netpfil/pf/fragmentation.sh
+++ tests/sys/netpfil/pf/fragmentation.sh
@@ -75,7 +75,7 @@
 {
 	atf_set descr 'IPv6 fragmentation test'
 	atf_set require.user root
-	atf_set require.progs scapy
+	atf_set require.progs "scapy python3"
 }
 
 v6_body()
Index: tests/sys/netpfil/pf/icmp.sh
===================================================================
--- tests/sys/netpfil/pf/icmp.sh
+++ tests/sys/netpfil/pf/icmp.sh
@@ -34,7 +34,7 @@
 {
 	atf_set descr 'Test CVE-2019-5598'
 	atf_set require.user root
-	atf_set require.progs scapy
+	atf_set require.progs "scapy python3"
 }
 
 cve_2019_5598_body()