diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+### 0.15.1 (Jun 22, 2023)
+  * remove unused vector-sized dependency
+
 ### 0.15.0 (May 04, 2023)
   * handle more `INT` intrinsic forms
     [#263](https://github.com/camfort/fortran-src/pull/263)
diff --git a/fortran-src.cabal b/fortran-src.cabal
--- a/fortran-src.cabal
+++ b/fortran-src.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           fortran-src
-version:        0.15.0
+version:        0.15.1
 synopsis:       Parsers and analyses for Fortran standards 66, 77, 90, 95 and 2003 (partial).
 description:    Provides lexing, parsing, and basic analyses of Fortran code covering standards: FORTRAN 66, FORTRAN 77, Fortran 90, Fortran 95, Fortran 2003 (partial) and some legacy extensions. Includes data flow and basic block analysis, a renamer, and type analysis. For example usage, see the @<https://hackage.haskell.org/package/camfort CamFort>@ project, which uses fortran-src as its front end.
 category:       Language
@@ -202,7 +202,6 @@
     , temporary >=1.2 && <1.4
     , text >=1.2 && <2.1
     , uniplate >=1.6 && <2
-    , vector-sized >=1.5.0 && <1.6
   default-language: Haskell2010
   if os(windows)
     cpp-options: -DFS_DISABLE_WIN_BROKEN_TESTS
@@ -267,7 +266,6 @@
     , temporary >=1.2 && <1.4
     , text >=1.2 && <2.1
     , uniplate >=1.6 && <2
-    , vector-sized >=1.5.0 && <1.6
   default-language: Haskell2010
   if os(windows)
     cpp-options: -DFS_DISABLE_WIN_BROKEN_TESTS
@@ -365,7 +363,6 @@
     , temporary >=1.2 && <1.4
     , text >=1.2 && <2.1
     , uniplate >=1.6 && <2
-    , vector-sized >=1.5.0 && <1.6
   default-language: Haskell2010
   if os(windows)
     cpp-options: -DFS_DISABLE_WIN_BROKEN_TESTS