this issue persist

jason@server03:~$ pgrep check-new-re
765
1925
1952
3852
4072
5238
5467
5646
6464
6753
9409
12877
14336
15288
16599
17057
18756
20018
20029
20174
20255
20726
22315
22523
22855
24292
24876
25964
26093
27981
28489
29387
30350
32556
jason@server03:~$ pgrep check-new-re | wc -l
34


jason@server03:~$ ps -ef | grep check-new-re
root       765     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root      1925     1  0 Feb04 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root      1952     1  0 Mar11 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root      3852     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root      4072     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root      5238     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root      5467     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root      5646     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root      6464     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root      6753     1  0 Jan21 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root      9409     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     12877     1  0 Feb25 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     14336     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     15288     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     16599     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     17057     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     18756     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     20018     1  0 Mar18 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     20029     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     20174     1  0 Jan28 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     20255     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     20726     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     22315     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     22523     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     22855     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     24292     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     24876     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     25964     1  0 Jan14 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     26093     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     27981     1  0 Mar04 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     28489     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     29387     1  0 Feb18 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     30350     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
root     32556     1  0  2017 ?        00:00:00 /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q

every week it runs and leaves behind another process, this is crazy.
What is causing this bug, and how do I fix it?