diff --git a/Documentation/technical/hash-function-transition.txt b/Documentation/technical/hash-function-transition.txt
index 0c4cb98cd4..7c1630bf83 100644
--- a/Documentation/technical/hash-function-transition.txt
+++ b/Documentation/technical/hash-function-transition.txt
@@ -781,7 +781,7 @@ Document History
 bmwill@google.com, jonathantanmy@google.com, jrnieder@gmail.com,
 sbeller@google.com
 
-* Initial version sent to http://lore.kernel.org/git/20170304011251.GA26789@aiede.mtv.corp.google.com
+* Initial version sent to https://lore.kernel.org/git/20170304011251.GA26789@aiede.mtv.corp.google.com
 
 2017-03-03 jrnieder@gmail.com
 Incorporated suggestions from jonathantanmy and sbeller:
@@ -823,8 +823,8 @@ Later history:
 
 References:
 
- [1] http://lore.kernel.org/git/CA+55aFzJtejiCjV0e43+9oR3QuJK2PiFiLQemytoLpyJWe6P9w@mail.gmail.com/
- [2] http://lore.kernel.org/git/CA+55aFz+gkAsDZ24zmePQuEs1XPS9BP_s8O7Q4wQ7LV7X5-oDA@mail.gmail.com/
- [3] http://lore.kernel.org/git/20170306084353.nrns455dvkdsfgo5@sigill.intra.peff.net/
- [4] http://lore.kernel.org/git/20170304224936.rqqtkdvfjgyezsht@genre.crustytoothpaste.net
+ [1] https://lore.kernel.org/git/CA+55aFzJtejiCjV0e43+9oR3QuJK2PiFiLQemytoLpyJWe6P9w@mail.gmail.com/
+ [2] https://lore.kernel.org/git/CA+55aFz+gkAsDZ24zmePQuEs1XPS9BP_s8O7Q4wQ7LV7X5-oDA@mail.gmail.com/
+ [3] https://lore.kernel.org/git/20170306084353.nrns455dvkdsfgo5@sigill.intra.peff.net/
+ [4] https://lore.kernel.org/git/20170304224936.rqqtkdvfjgyezsht@genre.crustytoothpaste.net
  [5] https://lore.kernel.org/git/CAJo=hJtoX9=AyLHHpUJS7fueV9ciZ_MNpnEPHUz8Whui6g9F0A@mail.gmail.com/
diff --git a/t/t0021-conversion.sh b/t/t0021-conversion.sh
index e4c4de5c74..e828ee964c 100755
--- a/t/t0021-conversion.sh
+++ b/t/t0021-conversion.sh
@@ -34,7 +34,7 @@ filter_git () {
 # Compare two files and ensure that `clean` and `smudge` respectively are
 # called at least once if specified in the `expect` file. The actual
 # invocation count is not relevant because their number can vary.
-# c.f. http://lore.kernel.org/git/xmqqshv18i8i.fsf@gitster.mtv.corp.google.com/
+# c.f. https://lore.kernel.org/git/xmqqshv18i8i.fsf@gitster.mtv.corp.google.com/
 test_cmp_count () {
 	expect=$1
 	actual=$2
@@ -49,7 +49,7 @@ test_cmp_count () {
 
 # Compare two files but exclude all `clean` invocations because Git can
 # call `clean` zero or more times.
-# c.f. http://lore.kernel.org/git/xmqqshv18i8i.fsf@gitster.mtv.corp.google.com/
+# c.f. https://lore.kernel.org/git/xmqqshv18i8i.fsf@gitster.mtv.corp.google.com/
 test_cmp_exclude_clean () {
 	expect=$1
 	actual=$2