t/lei-convert.t     | 2 +-
 t/lei-import-imap.t | 2 +-
 t/net_reader-imap.t | 2 +-
 xt/lei-auth-fail.t  | 1 +

diff --git a/t/lei-convert.t b/t/lei-convert.t
index f58a0a80c59fcfaf882b04caabacb441ee3a27f7..29f8ba755d0410903a603c7a16bc5042f964c211 100644
--- a/t/lei-convert.t
+++ b/t/lei-convert.t
@@ -6,7 +6,7 @@ use PublicInbox::MboxReader;
 use PublicInbox::MdirReader;
 use PublicInbox::NetReader;
 require_git 2.6;
-require_mods(qw(DBD::SQLite Search::Xapian));
+require_mods(qw(DBD::SQLite Search::Xapian Mail::IMAPClient));
 my ($tmpdir, $for_destroy) = tmpdir;
 my $sock = tcp_server;
 my $cmd = [ '-imapd', '-W0', "--stdout=$tmpdir/1", "--stderr=$tmpdir/2" ];
diff --git a/t/lei-import-imap.t b/t/lei-import-imap.t
index ee308723069a96a9a0336483285d83cfad31378d..a6ba805fffe0815898217bb7875f4b88bd59c2ec 100644
--- a/t/lei-import-imap.t
+++ b/t/lei-import-imap.t
@@ -3,7 +3,7 @@ # Copyright (C) 2021 all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 use strict; use v5.10.1; use PublicInbox::TestCommon;
 require_git 2.6;
-require_mods(qw(DBD::SQLite Search::Xapian));
+require_mods(qw(DBD::SQLite Search::Xapian Mail::IMAPClient));
 my ($ro_home, $cfg_path) = setup_public_inboxes;
 my ($tmpdir, $for_destroy) = tmpdir;
 my $sock = tcp_server;
diff --git a/t/net_reader-imap.t b/t/net_reader-imap.t
index eea8b0fd8711616ec058e530d16719d332763841..694b5a37ad5c1153215e190b094e03974a30c786 100644
--- a/t/net_reader-imap.t
+++ b/t/net_reader-imap.t
@@ -3,7 +3,7 @@ # Copyright (C) 2021 all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 use strict; use v5.10.1; use PublicInbox::TestCommon;
 require_git 2.6;
-require_mods(qw(DBD::SQLite Search::Xapian));
+require_mods(qw(DBD::SQLite Search::Xapian Mail::IMAPClient));
 my ($tmpdir, $for_destroy) = tmpdir;
 my ($ro_home, $cfg_path) = setup_public_inboxes;
 my $cmd = [ '-imapd', '-W0', "--stdout=$tmpdir/1", "--stderr=$tmpdir/2" ];
diff --git a/xt/lei-auth-fail.t b/xt/lei-auth-fail.t
index 5308d0f90eec303168b111e188b2b2861749cd2e..78f8466d4fec226a258372ceabc9a9bb3bfadd0e 100644
--- a/xt/lei-auth-fail.t
+++ b/xt/lei-auth-fail.t
@@ -2,6 +2,7 @@ #!perl -w
 # Copyright (C) 2021 all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 use strict; use v5.10.1; use PublicInbox::TestCommon;
+require_mods(qw(Mail::IMAPClient));
 
 # TODO: mock IMAP server which fails at authentication so we don't
 # have to make external connections to test this: