diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,29 @@
 
 ## [Unreleased]
 
+## [1.1.5.0] - 2026-06-14
+
+### Added
+
+- `casing` package (>=0.1.4.1) as a dependency for identifier case conversion
+- `Himari.Prelude.Casing`: `Text.Casing` re-exports from the `casing` package
+  (hiding the overly general `dropPrefix`, `toWords`, and `fromWords` to avoid name conflicts)
+- `here` package (>=1.2.14) as a dependency for here documents and string interpolation
+- `Himari.Prelude.Here`: `Data.String.Here` re-exports from the `here` package
+  (hiding the overly general `i` and `template` to avoid name conflicts)
+- `uuid` package (>=1.3.16.1) as a dependency for UUID values and their generation
+- `Himari.Prelude.UUID`: `Data.UUID` and `Data.UUID.V4` re-exports
+  from the `uuid` package
+  (hiding the overly general:
+  `null`,
+  `toString`,
+  `fromString`,
+  `toText`,
+  `fromText`,
+  `fromWords`,
+  `toWords`,
+  to avoid name conflicts)
+
 ## [1.1.4.1] - 2026-06-13
 
 ### Changed
diff --git a/fourmolu.yaml b/fourmolu.yaml
--- a/fourmolu.yaml
+++ b/fourmolu.yaml
@@ -28,8 +28,11 @@
   - module Himari.Prelude exports "unliftio" UnliftIO.IO.File
   # Himari.Prelude → 内部サブモジュール
   - module Himari.Prelude exports "himari" Himari.Prelude.Aeson
+  - module Himari.Prelude exports "himari" Himari.Prelude.Casing
+  - module Himari.Prelude exports "himari" Himari.Prelude.Here
   - module Himari.Prelude exports "himari" Himari.Prelude.Process
   - module Himari.Prelude exports "himari" Himari.Prelude.TypeLevel
+  - module Himari.Prelude exports "himari" Himari.Prelude.UUID
   - module Himari.Prelude exports "himari" Himari.SafePrelude
 
   # Himari.SafePrelude → 外部モジュール
@@ -103,6 +106,12 @@
   - module Himari.Prelude.Aeson exports "aeson-pretty" Data.Aeson.Encode.Pretty
   - module Himari.Prelude.Aeson exports "deriving-aeson" Deriving.Aeson
 
+  # Himari.Prelude.Casing → 外部モジュール
+  - module Himari.Prelude.Casing exports "casing" Text.Casing
+
+  # Himari.Prelude.Here → 外部モジュール
+  - module Himari.Prelude.Here exports "here" Data.String.Here
+
   # Himari.Prelude.Category → 外部モジュール
   - module Himari.Prelude.Category exports "base" Control.Category
 
@@ -154,6 +163,10 @@
   # Himari.Prelude.TypeLevel → 外部モジュール
   - module Himari.Prelude.TypeLevel exports "base" Data.Type.Coercion
   - module Himari.Prelude.TypeLevel exports "base" Data.Type.Equality
+
+  # Himari.Prelude.UUID → 外部モジュール
+  - module Himari.Prelude.UUID exports "uuid" Data.UUID
+  - module Himari.Prelude.UUID exports "uuid" Data.UUID.V4
 
 # 利用者向けの汎用的なfixity設定
 # hspecは既にfourmoluによってサポートされているため不要
diff --git a/himari.cabal b/himari.cabal
--- a/himari.cabal
+++ b/himari.cabal
@@ -1,6 +1,6 @@
 cabal-version: 3.12
 name: himari
-version: 1.1.4.1
+version: 1.1.5.0
 synopsis: A standard library for Haskell as an alternative to rio
 description:
   A standard library for Haskell inspired by rio.
@@ -84,6 +84,7 @@
     aeson-pretty >=0.8.10 && <0.9,
     base >=4.19.2.0 && <4.23,
     bytestring >=0.12.2.0 && <0.13,
+    casing >=0.1.4.1 && <0.2,
     containers >=0.7 && <0.9,
     convertible >=1.1.1.1 && <1.2,
     data-default >=0.8.0.0 && <0.9,
@@ -92,6 +93,7 @@
     exceptions >=0.10.9 && <0.11,
     filepath >=1.5.4.0 && <1.6,
     hashable >=1.5.0.0 && <1.6,
+    here >=1.2.14 && <1.3,
     lens >=5.3.5 && <6,
     monad-logger >=0.3.42 && <0.4,
     mtl >=2.3.1 && <2.4,
@@ -104,6 +106,7 @@
     typed-process >=0.2.13.0 && <0.3,
     unliftio >=0.2.25.1 && <0.3,
     unordered-containers >=0.2.20 && <0.3,
+    uuid >=1.3.16.1 && <1.4,
     vector >=0.13.2.0 && <0.14,
 
 library
@@ -119,16 +122,19 @@
     Himari.Prelude
     Himari.Prelude.Aeson
     Himari.Prelude.Arrow
+    Himari.Prelude.Casing
     Himari.Prelude.Catch
     Himari.Prelude.Category
     Himari.Prelude.Data
     Himari.Prelude.FilePath
     Himari.Prelude.Generics
+    Himari.Prelude.Here
     Himari.Prelude.Monoid
     Himari.Prelude.Process
     Himari.Prelude.Safe
     Himari.Prelude.Type
     Himari.Prelude.TypeLevel
+    Himari.Prelude.UUID
     Himari.SafePrelude
 
 test-suite himari-test
diff --git a/src/Himari/Prelude.hs b/src/Himari/Prelude.hs
--- a/src/Himari/Prelude.hs
+++ b/src/Himari/Prelude.hs
@@ -7,8 +7,11 @@
 import Data.Coerce as Export
 import Debug.Pretty.Simple as Export
 import Himari.Prelude.Aeson as Export
+import Himari.Prelude.Casing as Export
+import Himari.Prelude.Here as Export
 import Himari.Prelude.Process as Export
 import Himari.Prelude.TypeLevel as Export
+import Himari.Prelude.UUID as Export
 import Himari.SafePrelude as Export
 import UnliftIO as Export
 import UnliftIO.Concurrent as Export
diff --git a/src/Himari/Prelude/Casing.hs b/src/Himari/Prelude/Casing.hs
new file mode 100644
--- /dev/null
+++ b/src/Himari/Prelude/Casing.hs
@@ -0,0 +1,10 @@
+-- | Re-exports for case conversion of identifiers.
+-- "Text.Casing".
+module Himari.Prelude.Casing
+  ( module Export
+  ) where
+
+-- casing exposes mostly safe pure conversion functions,
+-- but @dropPrefix@, @toWords@, and @fromWords@ have names too generic and likely to conflict,
+-- so we hide them.
+import Text.Casing as Export hiding (dropPrefix, fromWords, toWords)
diff --git a/src/Himari/Prelude/Here.hs b/src/Himari/Prelude/Here.hs
new file mode 100644
--- /dev/null
+++ b/src/Himari/Prelude/Here.hs
@@ -0,0 +1,10 @@
+-- | Re-exports for here documents and string interpolation.
+-- "Data.String.Here".
+module Himari.Prelude.Here
+  ( module Export
+  ) where
+
+-- here exposes compile-time QuasiQuoters that are safe at runtime,
+-- but @i@ and @template@ have names too generic and likely to conflict, so we hide only them.
+-- The hidden quasiquoters are still usable via "Data.String.Here.Interpolated".
+import Data.String.Here as Export hiding (i, template)
diff --git a/src/Himari/Prelude/UUID.hs b/src/Himari/Prelude/UUID.hs
new file mode 100644
--- /dev/null
+++ b/src/Himari/Prelude/UUID.hs
@@ -0,0 +1,24 @@
+-- | Re-exports for UUID values and their generation.
+-- "Data.UUID".
+module Himari.Prelude.UUID
+  ( module Export
+  ) where
+
+-- uuid exposes mostly safe total functions returning 'Maybe',
+-- but some names are too generic and likely to conflict, so we hide only them.
+-- @null@, @toString@, @fromString@, @toText@, @fromText@ conflict with the @base@ and @text@
+-- ecosystem, and @toWords@, @fromWords@ are likewise too generic
+-- (they are also hidden from 'Himari.Prelude.Casing').
+-- The hidden conversions are still usable via a qualified import of "Data.UUID".
+import Data.UUID as Export hiding
+  ( fromString
+  , fromText
+  , fromWords
+  , null
+  , toString
+  , toText
+  , toWords
+  )
+
+-- We will only re-export UUID modules that are practical.
+import Data.UUID.V4 as Export