diff --git a/LPFP.cabal b/LPFP.cabal
--- a/LPFP.cabal
+++ b/LPFP.cabal
@@ -1,12 +1,12 @@
 name:           LPFP
-version:        1.1.2
+version:        1.1.3
 synopsis:       Code for the book Learn Physics with Functional Programming
 description:    Haskell code to help the user learn mechanics of one particle,
                 mechanics of multiple interacting particles, and electromagnetic theory.
 homepage:       https://lpfp.io
 author:         Scott N. Walck
 maintainer:     walck@lvc.edu
-copyright:      2023 Scott N. Walck
+copyright:      2024 Scott N. Walck
 license:        BSD3
 license-file:   LICENSE
 build-type:     Simple
@@ -140,6 +140,7 @@
       LPFP
     , base >=4.7 && <5
     , Vis >= 0.7.7 && < 0.8
+    , linear >= 1.22 && < 1.24
   default-language: Haskell2010
 
 executable LPFP-VisDisplay3
@@ -152,6 +153,7 @@
     , base >=4.7 && <5
     , Vis >= 0.7.7 && < 0.8
     , SpatialMath >= 0.2.7 && < 0.3
+    , linear >= 1.22 && < 1.24
   default-language: Haskell2010
 
 executable LPFP-VisAnimate