diff --git a/hmatrix-nlopt.cabal b/hmatrix-nlopt.cabal
--- a/hmatrix-nlopt.cabal
+++ b/hmatrix-nlopt.cabal
@@ -1,5 +1,5 @@
 name:                hmatrix-nlopt
-version:             0.1.1.0
+version:             0.1.2.0
 synopsis:            Interface HMatrix with the NLOPT minimizer
 description:         A high-level interface to
                      <http://ab-initio.mit.edu/wiki/index.php/NLopt the NLOPT solvers>
@@ -14,7 +14,7 @@
 build-type:          Simple
 extra-source-files:  ChangeLog.md
 cabal-version:       >=1.10
-tested-with:         GHC == 8.0.2
+tested-with:         GHC == 8.4.3
 bug-reports:         https://github.com/peddie/hmatrix-nlopt/issues
 
 source-repository head
@@ -23,10 +23,10 @@
 
 library
   exposed-modules:     Numeric.NLOPT
-  build-depends:       base >=4.9 && <4.11
+  build-depends:       base >=4.9 && <4.12
                      , hmatrix >= 0.17
                      , vector >= 0.10
-                     , nlopt-haskell >= 0.1.1.0
+                     , nlopt-haskell >= 0.1.2.0
   hs-source-dirs:      src
   default-language:    Haskell2010