--- a/ansible/roles/docker-hg-web/files/requirements-mozbuild.txt
+++ b/ansible/roles/docker-hg-web/files/requirements-mozbuild.txt
@@ -1,11 +1,11 @@
 jsmin==2.1.2 \
     --hash=sha256:5e710e9db14f210dfd55ebec43bca5c812d34c5b6179dbcba2e61d9f965bf4e1
 
-Mercurial==4.1.2 \
-    --hash=sha256:09415253fb409a77e19b9951532a3c22c4e07e74bab80652527064617daab194
+Mercurial==4.2.2 \
+    --hash=sha256:b20132dec5ae6d27ee43a133144069895befe09f7e454bfa9e39950a185f0afe
 
 mozbuild==0.2 \
     --hash=sha256:24227608fc3c735fbb5c629d0540a600368c1d5e57013dd39272a0a5c9cccb13
 
 mozfile==1.2 \
     --hash=sha256:d3b00f336c6a89449bd78dd3ae65d74eb98497438d1ccfec07af0a736d20e957

--- a/ansible/roles/hg-web/files/requirements-replication.txt
+++ b/ansible/roles/hg-web/files/requirements-replication.txt
@@ -1,13 +1,13 @@
 kafka-python==0.9.4 \
     --hash=sha256:6cd463b688d98fec1c1f602e316eb7745aef0e55dc57fe9ff2f203cf0865c8c7
 
-Mercurial==4.1.2 \
-    --hash=sha256:09415253fb409a77e19b9951532a3c22c4e07e74bab80652527064617daab194
+Mercurial==4.2.2 \
+    --hash=sha256:b20132dec5ae6d27ee43a133144069895befe09f7e454bfa9e39950a185f0afe
 
 python-hglib==1.9 \
     --hash=sha256:f4302892b2b8287cf326586c7280b9eadfc3d0c7cd3feba957429a8d9b1a60ce
 
 PyYAML==3.11 \
     --hash=sha256:c36c938a872e5ff494938b33b14aaa156cb439ec67548fcab3535bb78b0846e8 \
     --hash=sha256:19bb3ac350ef878dda84a62d37c7d5c17a137386dde9c2ce7249c7a21d7f6ac9
 

--- a/ansible/roles/hg-web/files/requirements-tools.txt
+++ b/ansible/roles/hg-web/files/requirements-tools.txt
@@ -8,18 +8,18 @@ Cython==0.25.1 \
     --hash=sha256:b72debd498e8d06487ae0631b3b7faf953d9fd2e364ffa80f1f35ec1801183d0
 
 futures==3.0.3 \
     --hash=sha256:04afa2a06ab7dcca9d81717b420a7a14826061e9b2614a5c77dd24c75ccf97e4
 
 idna==2.5 \
     --hash=sha256:cc19709fd6d0cbfed39ea875d29ba6d4e22c0cebc510a76d6302a28385e8bb70
 
-Mercurial==4.1.2 \
-    --hash=sha256:09415253fb409a77e19b9951532a3c22c4e07e74bab80652527064617daab194
+Mercurial==4.2.2 \
+    --hash=sha256:b20132dec5ae6d27ee43a133144069895befe09f7e454bfa9e39950a185f0afe
 
 python-hglib==1.9 \
     --hash=sha256:f4302892b2b8287cf326586c7280b9eadfc3d0c7cd3feba957429a8d9b1a60ce
 
 requests==2.18.1 \
     --hash=sha256:6afd3371c1f4c1970497cdcace5c5ecbbe58267bf05ca1abd93d99d170803ab7
 
 tabulate==0.7.5 \