diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8b8712a..8157728 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,8 +13,8 @@ jobs:
     name: OTP ${{matrix.otp_vsn}}
     strategy:
       matrix:
-        otp_vsn: ['27', '26', '25']
-        rebar_vsn: ['3.23.0']
+        otp_vsn: ['27']
+        rebar_vsn: ['3.24.0']
     runs-on: 'ubuntu-24.04'
     steps:
       - uses: actions/checkout@v4
@@ -33,7 +33,8 @@ jobs:
     name: docker container test with OTP ${{matrix.otp_vsn}}
     strategy:
       matrix:
-        otp_vsn: ['27', '26', '25']
+        otp_vsn: ['27']
+        rebar_vsn: ['3.24.0']
     runs-on: 'ubuntu-24.04'
     env:
       OTP_RELEASE: ${{ matrix.otp_vsn }}
@@ -56,7 +57,7 @@ jobs:
       - integration_test
     if: github.ref == 'refs/heads/master'
     env:
-      OTP_RELEASE: 27.0
+      OTP_RELEASE: 27.1
     steps:
       - uses: actions/checkout@v4
       - name: Set up QEMU
diff --git a/ci/build_docker_image.sh b/ci/build_docker_image.sh
index a732396..c6a4acb 100755
--- a/ci/build_docker_image.sh
+++ b/ci/build_docker_image.sh
@@ -7,7 +7,7 @@ IFS=$'\n\t'
 
 # Get current repo version
 version="$(git rev-parse --short HEAD)"
-otp_vsn="${OTP_RELEASE:-25.3}"
+otp_vsn="${OTP_RELEASE:-27.1}"
 echo "ERLANG/OTP ${otp_vsn}"
 echo "AMOC-ARSENAL-XMPP ${version}"
 
diff --git a/ci/start_amoc_cluster.sh b/ci/start_amoc_cluster.sh
index 179a389..5b9f812 100755
--- a/ci/start_amoc_cluster.sh
+++ b/ci/start_amoc_cluster.sh
@@ -7,4 +7,3 @@ IFS=$'\n\t'
 
 cd "$(git rev-parse --show-toplevel)/ci"
 docker compose --profile with_graphite up --wait --wait-timeout 100 --scale amoc-worker=2
-
diff --git a/rebar.config b/rebar.config
index 89da0c1..f902e82 100644
--- a/rebar.config
+++ b/rebar.config
@@ -3,7 +3,7 @@
 ]}.
 
 { deps, [
-    {amoc_arsenal, {git, "https://github.com/esl/amoc-arsenal.git", {branch, "main"}}},
+    {amoc_arsenal, {git, "https://github.com/esl/amoc-arsenal.git", {branch, "prometheus"}}},
     {escalus, "4.2.16"},
     {jiffy, "1.1.2"},
     {fusco, "0.1.1"}
diff --git a/rebar.lock b/rebar.lock
index 9802738..43beeb6 100644
--- a/rebar.lock
+++ b/rebar.lock
@@ -1,105 +1,91 @@
 {"1.2.0",
-[{<<"amoc">>,{pkg,<<"amoc">>,<<"3.3.0">>},1},
+[{<<"accept">>,{pkg,<<"accept">>,<<"0.3.5">>},3},
+ {<<"amoc">>,{pkg,<<"amoc">>,<<"3.3.0">>},1},
  {<<"amoc_arsenal">>,
   {git,"https://github.com/esl/amoc-arsenal.git",
-       {ref,"b6dc37c3c7b8ad439c87483939c91f784fd51d50"}},
+       {ref,"7d8c9a5d2ebc55bd030ada91e2f998688fcdbd4c"}},
   0},
  {<<"amoc_rest">>,
   {git,"https://github.com/esl/amoc_rest.git",
-       {ref,"1e41be5b6b332a827d125380fa4f7ea23a00748e"}},
+       {ref,"34462b21224b3bd528ec57e5f53110ec4e56648c"}},
   1},
  {<<"base16">>,{pkg,<<"base16">>,<<"2.0.1">>},1},
  {<<"bbmustache">>,{pkg,<<"bbmustache">>,<<"1.12.2">>},1},
- {<<"bear">>,{pkg,<<"bear">>,<<"1.0.0">>},2},
  {<<"cowboy">>,{pkg,<<"cowboy">>,<<"2.12.0">>},2},
  {<<"cowlib">>,{pkg,<<"cowlib">>,<<"2.12.1">>},2},
- {<<"docsh">>,{pkg,<<"docsh">>,<<"0.7.2">>},1},
  {<<"escalus">>,{pkg,<<"escalus">>,<<"4.2.16">>},0},
  {<<"exml">>,{pkg,<<"hexml">>,<<"3.4.1">>},1},
- {<<"exometer_core">>,
-  {git,"https://github.com/esl/exometer_core.git",
-       {ref,"123daa053a4abb3ff4bdbf52f08344da535294e9"}},
-  1},
- {<<"exometer_report_graphite">>,
-  {git,"https://github.com/esl/exometer_report_graphite.git",
-       {ref,"59e475a094818294443de9dc68e08ee0116a5626"}},
-  1},
  {<<"fast_pbkdf2">>,{pkg,<<"fast_pbkdf2">>,<<"1.0.5">>},2},
  {<<"fast_scram">>,{pkg,<<"fast_scram">>,<<"0.6.0">>},1},
  {<<"fast_tls">>,{pkg,<<"fast_tls">>,<<"1.1.21">>},1},
  {<<"fusco">>,{pkg,<<"fusco">>,<<"0.1.1">>},0},
- {<<"getopt">>,{pkg,<<"getopt">>,<<"1.0.1">>},3},
  {<<"gun">>,{pkg,<<"gun">>,<<"2.0.1">>},1},
- {<<"jesse">>,{pkg,<<"jesse">>,<<"1.8.0">>},2},
+ {<<"jesse">>,{pkg,<<"jesse">>,<<"1.8.1">>},2},
  {<<"jiffy">>,{pkg,<<"jiffy">>,<<"1.1.2">>},0},
- {<<"jsx">>,{pkg,<<"jsx">>,<<"3.1.0">>},2},
  {<<"meck">>,{pkg,<<"meck">>,<<"0.9.2">>},1},
  {<<"p1_utils">>,{pkg,<<"p1_utils">>,<<"1.0.26">>},2},
- {<<"parse_trans">>,{pkg,<<"parse_trans">>,<<"3.4.0">>},2},
- {<<"providers">>,{pkg,<<"providers">>,<<"1.8.1">>},2},
+ {<<"prometheus">>,{pkg,<<"prometheus">>,<<"4.11.0">>},1},
+ {<<"prometheus_cowboy">>,{pkg,<<"prometheus_cowboy">>,<<"0.1.8">>},1},
+ {<<"prometheus_httpd">>,{pkg,<<"prometheus_httpd">>,<<"2.1.11">>},2},
+ {<<"quantile_estimator">>,{pkg,<<"quantile_estimator">>,<<"0.2.1">>},2},
  {<<"quickrand">>,{pkg,<<"quickrand">>,<<"2.0.7">>},2},
  {<<"ranch">>,{pkg,<<"ranch">>,<<"2.1.0">>},2},
- {<<"rfc3339">>,{pkg,<<"rfc3339">>,<<"0.9.0">>},3},
- {<<"telemetry">>,{pkg,<<"telemetry">>,<<"1.2.1">>},1},
+ {<<"telemetry">>,{pkg,<<"telemetry">>,<<"1.3.0">>},1},
  {<<"uuid">>,{pkg,<<"uuid_erl">>,<<"2.0.7">>},1},
  {<<"worker_pool">>,{pkg,<<"worker_pool">>,<<"6.2.1">>},1}]}.
 [
 {pkg_hash,[
+ {<<"accept">>, <<"B33B127ABCA7CC948BBE6CAA4C263369ABF1347CFA9D8E699C6D214660F10CD1">>},
  {<<"amoc">>, <<"531B7E8CE39D40B4BF5A819868091C4451DC3D3FDAE753E3E3B1D0E5E8E81CDD">>},
  {<<"base16">>, <<"F0549F732E03BE8124ED0D19FD5EE52146CC8BE24C48CBC3F23AB44B157F11A2">>},
  {<<"bbmustache">>, <<"0CABDCE0DB9FE6D3318131174B9F2B351328A4C0AFBEB3E6E99BB0E02E9B621D">>},
- {<<"bear">>, <<"430419C1126B477686CDE843E88BA0F2C7DC5CDF0881C677500074F704339A99">>},
  {<<"cowboy">>, <<"F276D521A1FF88B2B9B4C54D0E753DA6C66DD7BE6C9FCA3D9418B561828A3731">>},
  {<<"cowlib">>, <<"A9FA9A625F1D2025FE6B462CB865881329B5CAFF8F1854D1CBC9F9533F00E1E1">>},
- {<<"docsh">>, <<"F893D5317A0E14269DD7FE79CF95FB6B9BA23513DA0480EC6E77C73221CAE4F2">>},
  {<<"escalus">>, <<"EC83C277DECD721C3B219823C159D66CF94981A0796473617E4C0835E7395FE5">>},
  {<<"exml">>, <<"9581FE6512D9772C61BBE611CD4A8E5BB90B4D4481275325EC520F7A931A9393">>},
  {<<"fast_pbkdf2">>, <<"6045138C4C209FC8222A0B18B2CB1D7BD7407EF4ADAD0F14C5E0F7F4726E3E41">>},
  {<<"fast_scram">>, <<"70724F584A118DA147A51EE38DEE56203F217D58AD61E0BB2C2EF834C16B35B8">>},
  {<<"fast_tls">>, <<"65D7D547A09EEFB37A1C0D04D8601FAC4F3E6E2C1EDE859A7787081670F9648D">>},
  {<<"fusco">>, <<"3DD6A90151DFEF30EA1937CC44E9A59177C0094918388D9BCAA2F2DC5E2AE4AA">>},
- {<<"getopt">>, <<"C73A9FA687B217F2FF79F68A3B637711BB1936E712B521D8CE466B29CBF7808A">>},
  {<<"gun">>, <<"160A9A5394800FCBA41BC7E6D421295CF9A7894C2252C0678244948E3336AD73">>},
- {<<"jesse">>, <<"CF7615C3F2BE892F77BCCF736F23B4BD54A0FC686C7040431AEBA5EF7932CC4D">>},
+ {<<"jesse">>, <<"C9E3670C7EE40F719734E3BC716578143AABA93FC7525A02A7D5CB300B3AD71E">>},
  {<<"jiffy">>, <<"A9B6C9A7EC268E7CF493D028F0A4C9144F59CCB878B1AFE42841597800840A1B">>},
- {<<"jsx">>, <<"D12516BAA0BB23A59BB35DCCAF02A1BD08243FCBB9EFE24F2D9D056CCFF71268">>},
  {<<"meck">>, <<"85CCBAB053F1DB86C7CA240E9FC718170EE5BDA03810A6292B5306BF31BAE5F5">>},
  {<<"p1_utils">>, <<"67B0C4AC9FA3BA3EF563B31AA111B0A004439A37FAC85E027F1C3617E1C7EC6C">>},
- {<<"parse_trans">>, <<"BB87AC362A03CA674EBB7D9D498F45C03256ADED7214C9101F7035EF44B798C7">>},
- {<<"providers">>, <<"70B4197869514344A8A60E2B2A4EF41CA03DEF43CFB1712ECF076A0F3C62F083">>},
+ {<<"prometheus">>, <<"B95F8DE8530F541BD95951E18E355A840003672E5EDA4788C5FA6183406BA29A">>},
+ {<<"prometheus_cowboy">>, <<"CFCE0BC7B668C5096639084FCD873826E6220EA714BF60A716F5BD080EF2A99C">>},
+ {<<"prometheus_httpd">>, <<"F616ED9B85B536B195D94104063025A91F904A4CFC20255363F49A197D96C896">>},
+ {<<"quantile_estimator">>, <<"EF50A361F11B5F26B5F16D0696E46A9E4661756492C981F7B2229EF42FF1CD15">>},
  {<<"quickrand">>, <<"D2BD76676A446E6A058D678444B7FDA1387B813710D1AF6D6E29BB92186C8820">>},
  {<<"ranch">>, <<"2261F9ED9574DCFCC444106B9F6DA155E6E540B2F82BA3D42B339B93673B72A3">>},
- {<<"rfc3339">>, <<"2075653DC9407541C84B1E15F8BDA2ABE95FB17C9694025E079583F2D19C1060">>},
- {<<"telemetry">>, <<"68FDFE8D8F05A8428483A97D7AAB2F268AAFF24B49E0F599FAA091F1D4E7F61C">>},
+ {<<"telemetry">>, <<"FEDEBBAE410D715CF8E7062C96A1EF32EC22E764197F70CDA73D82778D61E7A2">>},
  {<<"uuid">>, <<"B2078D2CC814F53AFA52D36C91E08962C7E7373585C623F4C0EA6DFB04B2AF94">>},
  {<<"worker_pool">>, <<"BD98A0BE1D20057AE9967CBE73D263AEA5BE14BBE4C73CAFEB1378572FF14561">>}]},
 {pkg_hash_ext,[
+ {<<"accept">>, <<"11B18C220BCC2EAB63B5470C038EF10EB6783BCB1FCDB11AA4137DEFA5AC1BB8">>},
  {<<"amoc">>, <<"B8DD4F77BB94716ABC64E863158EEF8E1375CECB2F69E57DC4A293B0949D4985">>},
  {<<"base16">>, <<"06EA2D48343282E712160BA89F692B471DB8B36ABE8394F3445FF9032251D772">>},
  {<<"bbmustache">>, <<"688B33A4D5CC2D51F575ADF0B3683FC40A38314A2F150906EDCFC77F5B577B3B">>},
- {<<"bear">>, <<"157B67901ADF84FF0DA6EAE035CA1292A0AC18AA55148154D8C582B2C68959DB">>},
  {<<"cowboy">>, <<"8A7ABE6D183372CEB21CAA2709BEC928AB2B72E18A3911AA1771639BEF82651E">>},
  {<<"cowlib">>, <<"163B73F6367A7341B33C794C4E88E7DBFE6498AC42DCD69EF44C5BC5507C8DB0">>},
- {<<"docsh">>, <<"4E7DB461BB07540D2BC3D366B8513F0197712D0495BB85744F367D3815076134">>},
  {<<"escalus">>, <<"3CA9D58F39A3FBD618A1E7B5D57AE97B76016330BB2374C430AA9278669243CC">>},
  {<<"exml">>, <<"D8E7894E2544402B4986EEB2443C15B51B14F686266F091DBF2777D1D99A2FA2">>},
  {<<"fast_pbkdf2">>, <<"BC3B5A3CAB47AD114FF8BB815FEDE62A6187ACD14D8B37412F2AF8236A089CEF">>},
  {<<"fast_scram">>, <<"771D034341599CFC6A6C5E56CF924B68D2C7478088CAF17419E3147B66914667">>},
  {<<"fast_tls">>, <<"131542913937025E48CD80AA81F00359686D5501B75621E72026A87B5229505B">>},
  {<<"fusco">>, <<"6343551BD1E824F2A6CA85E1158C5B37C320FD449FBFEC7450A73F192AAF9022">>},
- {<<"getopt">>, <<"53E1AB83B9CEB65C9672D3E7A35B8092E9BDC9B3EE80721471A161C10C59959C">>},
  {<<"gun">>, <<"A10BC8D6096B9502205022334F719CC9A08D9ADCFBFC0DBEE9EF31B56274A20B">>},
- {<<"jesse">>, <<"860EF4621DDBFB72792668929BE127E45E8B07CF19EEA264B0A9D48D36CCA41B">>},
+ {<<"jesse">>, <<"0EDED3F18623FDA2F25989804A06CF518B4ACF2E9365B18C8E8C013D7E3C906F">>},
  {<<"jiffy">>, <<"BB61BC42A720BBD33CB09A410E48BB79A61012C74CB8B3E75F26D988485CF381">>},
- {<<"jsx">>, <<"0C5CC8FDC11B53CC25CF65AC6705AD39E54ECC56D1C22E4ADB8F5A53FB9427F3">>},
  {<<"meck">>, <<"81344F561357DC40A8344AFA53767C32669153355B626EA9FCBC8DA6B3045826">>},
  {<<"p1_utils">>, <<"D0379E8C1156B98BD64F8129C1DE022FCCA4F2FDB7486CE73BF0ED2C3376B04C">>},
- {<<"parse_trans">>, <<"F99E368830BEA44552224E37E04943A54874F08B8590485DE8D13832B63A2DC3">>},
- {<<"providers">>, <<"E45745ADE9C476A9A469EA0840E418AB19360DC44F01A233304E118A44486BA0">>},
+ {<<"prometheus">>, <<"719862351AABF4DF7079B05DC085D2BBCBE3AC0AC3009E956671B1D5AB88247D">>},
+ {<<"prometheus_cowboy">>, <<"BA286BECA9302618418892D37BCD5DC669A6CC001F4EB6D6AF85FF81F3F4F34C">>},
+ {<<"prometheus_httpd">>, <<"0BBE831452CFDF9588538EB2F570B26F30C348ADAE5E95A7D87F35A5910BCF92">>},
+ {<<"quantile_estimator">>, <<"282A8A323CA2A845C9E6F787D166348F776C1D4A41EDE63046D72D422E3DA946">>},
  {<<"quickrand">>, <<"B8ACBF89A224BC217C3070CA8BEBC6EB236DBE7F9767993B274084EA044D35F0">>},
  {<<"ranch">>, <<"244EE3FA2A6175270D8E1FC59024FD9DBC76294A321057DE8F803B1479E76916">>},
- {<<"rfc3339">>, <<"182314DE35C9F4180B22EB5F22916D8D7A799C1109A060C752970273A9332AD6">>},
- {<<"telemetry">>, <<"DAD9CE9D8EFFC621708F99EAC538EF1CBE05D6A874DD741DE2E689C47FEAFED5">>},
+ {<<"telemetry">>, <<"7015FC8919DBE63764F4B4B87A95B7C0996BD539E0D499BE6EC9D7F3875B79E6">>},
  {<<"uuid">>, <<"4E4C5CA3461DC47C5E157ED42AA3981A053B7A186792AF972A27B14A9489324E">>},
  {<<"worker_pool">>, <<"64E560DE08CA5E7DB8BD4CDCC7B744B0659696194E3BC9E56239BA4A0F7E24F9">>}]}
 ].