diff --git a/mozilla/webtools/bugzilla/.bzrrev b/mozilla/webtools/bugzilla/.bzrrev
index 15a77e7ca6d..f69188c7d91 100644
--- a/mozilla/webtools/bugzilla/.bzrrev
+++ b/mozilla/webtools/bugzilla/.bzrrev
@@ -1 +1 @@
-9369
\ No newline at end of file
+9370
\ No newline at end of file
diff --git a/mozilla/webtools/bugzilla/.gitrev b/mozilla/webtools/bugzilla/.gitrev
index 0fefd9a171b..a55ceea36f4 100644
--- a/mozilla/webtools/bugzilla/.gitrev
+++ b/mozilla/webtools/bugzilla/.gitrev
@@ -1 +1 @@
-3d40dae2c1c324d3e24dd1517102b43d558bb619
\ No newline at end of file
+8a1de002259e31702ba278778f4e0ed2026666af
\ No newline at end of file
diff --git a/mozilla/webtools/bugzilla/Bugzilla/Install/Requirements.pm b/mozilla/webtools/bugzilla/Bugzilla/Install/Requirements.pm
index 8bf4facfef3..797f8545320 100644
--- a/mozilla/webtools/bugzilla/Bugzilla/Install/Requirements.pm
+++ b/mozilla/webtools/bugzilla/Bugzilla/Install/Requirements.pm
@@ -202,9 +202,9 @@ sub OPTIONAL_MODULES {
     {
         package => 'Chart',
         module  => 'Chart::Lines',
-        # Versions below 2.4.1 cannot be compared accurately, see
-        # https://rt.cpan.org/Public/Bug/Display.html?id=28218.
-        version => '2.4.1',
+        # Versions below 2.4.10 throw deprecation warnings, and will crash in
+        # Perl 2.21 and above.
+        version => '2.4.10',
         feature => [qw(new_charts old_charts)],
     },
     {