diff --git a/dune-project b/dune-project
index 02483f73b..9ecbcd757 100644
--- a/dune-project
+++ b/dune-project
@@ -48,9 +48,9 @@
   (logs
    (>= 0.7.0))
   (containers
-   (>= 3.6))
+   (>= 3.14))
   (containers-data
-   (>= 3.6))
+   (>= 3.14))
   (mariadb
    (and
     (>= 1.1.6)
@@ -77,5 +77,4 @@
   (guardian
    (= 0.3.2))
   ;; Test/Dev dependencies
-  (alcotest-lwt :with-test)
-  ))
+  (alcotest-lwt :with-test)))
diff --git a/pool.opam b/pool.opam
index 12d247a2b..a939810c6 100644
--- a/pool.opam
+++ b/pool.opam
@@ -21,8 +21,8 @@ depends: [
   "sihl-storage" {>= "4.0.0" & < "5.0.0"}
   "lwt" {>= "5.6.1"}
   "logs" {>= "0.7.0"}
-  "containers" {>= "3.6"}
-  "containers-data" {>= "3.6"}
+  "containers" {>= "3.14"}
+  "containers-data" {>= "3.14"}
   "mariadb" {>= "1.1.6" & < "2.0.0"}
   "caqti-driver-mariadb" {>= "2.0.1"}
   "caqti-lwt" {>= "2.0.1"}
diff --git a/pool.opam.locked b/pool.opam.locked
index 159e951d6..412a6722d 100644
--- a/pool.opam.locked
+++ b/pool.opam.locked
@@ -28,7 +28,7 @@ depends: [
   "ca-certs" {= "0.2.3"}
   "camlp-streams" {= "5.0.1"}
   "canary" {= "0.0.3"}
-  "caqti" {= "2.1.2"}
+  "caqti" {= "2.1.1"}
   "caqti-driver-mariadb" {= "2.1.1"}
   "caqti-lwt" {= "2.1.1"}
   "cmdliner" {= "1.3.0"}
@@ -49,9 +49,9 @@ depends: [
   "conf-mariadb" {= "2"}
   "conf-pkg-config" {= "3"}
   "conformist" {= "0.8.1"}
-  "containers" {= "3.13.1"}
-  "containers-data" {= "3.13.1"}
-  "cppo" {= "1.7.0"}
+  "containers" {= "3.14"}
+  "containers-data" {= "3.14"}
+  "cppo" {= "1.6.9"}
   "csexp" {= "1.5.2"}
   "cstruct" {= "6.2.0"}
   "ctypes" {= "0.20.2"}
@@ -148,7 +148,7 @@ depends: [
   "ppxlib" {= "0.33.0"}
   "prettym" {= "0.0.3"}
   "ptime" {= "1.1.0"}
-  "re" {= "1.12.0"}
+  "re" {= "1.11.0"}
   "result" {= "1.5"}
   "rock" {= "0.20.0"}
   "rosetta" {= "0.3.0"}
diff --git a/pool/test/filter_test.ml b/pool/test/filter_test.ml
index 8866166ca..068336fa5 100644
--- a/pool/test/filter_test.ml
+++ b/pool/test/filter_test.ml
@@ -1241,7 +1241,6 @@ let filter_by_date_custom_field _ () =
 
 let filter_by_tags _ () =
   let open Utils.Lwt_result.Infix in
-  let open CCFun in
   let open Tags in
   let open Operator.ListM in
   let open Alcotest in
@@ -1289,7 +1288,7 @@ let filter_by_tags _ () =
     find (Some filter)
     ||> get_exn
     ||> CCList.filter
-          (flip
+          (CCFun.flip
              (CCList.mem ~eq:Contact.equal)
              [ contact_one; contact_two; contact_three ])
     ||> CCList.stable_sort Contact.compare
diff --git a/pool/test/waiting_list_test.ml b/pool/test/waiting_list_test.ml
index d730de843..391dc4494 100644
--- a/pool/test/waiting_list_test.ml
+++ b/pool/test/waiting_list_test.ml
@@ -116,8 +116,9 @@ module PendingWaitingLists = struct
       Experiment.find_pending_waitinglists_by_contact
         Test_utils.Data.database_label
         contact
-      ||> CCList.find_opt (Experiment.Public.equal experiment)
-          %> CCOption.is_some
+      |> Lwt.map
+           (CCList.find_opt (Experiment.Public.equal experiment)
+            %> CCOption.is_some)
     in
     let () = Alcotest.(check bool "succeeds" true res) in
     Lwt.return_unit
@@ -141,9 +142,10 @@ module PendingWaitingLists = struct
       find_pending_waitinglists_by_contact
         Test_utils.Data.database_label
         contact
-      ||> CCList.find_opt (fun public ->
-            Id.equal (Public.id public) experiment_id)
-          %> CCOption.is_none
+      |> Lwt.map
+           (CCList.find_opt (fun public ->
+              Id.equal (Public.id public) experiment_id)
+            %> CCOption.is_none)
     in
     let () = Alcotest.(check bool "succeeds" true res) in
     Lwt.return_unit
@@ -168,8 +170,9 @@ module PendingWaitingLists = struct
       Experiment.find_pending_waitinglists_by_contact
         Test_utils.Data.database_label
         contact
-      ||> CCList.find_opt (Experiment.Public.equal experiment)
-          %> CCOption.is_some
+      |> Lwt.map
+           (CCList.find_opt (Experiment.Public.equal experiment)
+            %> CCOption.is_some)
     in
     let () = Alcotest.(check bool "succeeds" true res) in
     Lwt.return_unit
diff --git a/pool/web/handler/root_status.ml b/pool/web/handler/root_status.ml
index ea1453873..4f53cc1ea 100644
--- a/pool/web/handler/root_status.ml
+++ b/pool/web/handler/root_status.ml
@@ -11,13 +11,12 @@ let yojson_response ?status json =
 ;;
 
 let show _ =
-  let open CCFun in
   let%lwt result =
     let open Schedule in
     let create_entry ?database_label label value =
       ( CCOption.map_or
           ~default:label
-          (Database.Label.value %> Format.asprintf "%s [%s]" label)
+          CCFun.(Database.Label.value %> Format.asprintf "%s [%s]" label)
           database_label
       , value )
     in
@@ -59,9 +58,11 @@ let show _ =
           CCString.mem ~sub (Schedule.Label.value label)
         in
         if contains_label then Some (is_ok schedule) else None)
-      |> CCList.for_all id
+      |> CCList.for_all CCFun.id
+    in
+    let is_ok schedules =
+      schedules |> CCList.map is_ok |> CCList.for_all CCFun.id
     in
-    let is_ok = CCList.(map is_ok %> for_all id) in
     let list_schedules =
       schedules
       |> CCList.map (fun ({ label; last_run; _ } : public) ->
diff --git a/pool/web/handler/root_tenant.ml b/pool/web/handler/root_tenant.ml
index 6d9d7cbf8..88ac42b51 100644
--- a/pool/web/handler/root_tenant.ml
+++ b/pool/web/handler/root_tenant.ml
@@ -103,7 +103,6 @@ let create_operator req =
     Lwt_result.map_error (fun err ->
       err, Format.asprintf "%s/operator" redirect_path)
     @@
-    let open CCFun in
     let tags = Pool_context.Logger.Tags.req req in
     let* tenant_db =
       Pool_tenant.(find_full tenant_id >|+ Write.database_label)
@@ -123,8 +122,10 @@ let create_operator req =
       >>= handle ~roles:[ `Operator, None ] ~tags
       |> Lwt_result.lift
     in
-    let handle =
-      Lwt_list.iter_s (Pool_event.handle_event ~tags tenant_db) %> Lwt_result.ok
+    let handle events =
+      events
+      |> Lwt_list.iter_s (Pool_event.handle_event ~tags tenant_db)
+      |> Lwt_result.ok
     in
     let return_to_overview () =
       Http_utils.redirect_to_with_actions