add bound.

raaz.cabal

@@ -623,7 +623,7 @@ executable raaz
                , Command.Info
                , Command.Checksum
                , Usage
-  build-depends: optparse-applicative >= 0.13.0.0
+  build-depends: optparse-applicative >= 0.13.0.0 && < 0.18
                , core
                , raaz
   if impl(ghc < 8)
@@ -635,9 +635,9 @@ executable raaz
 common test-defaults
   import: defaults
   build-depends: core
-               , HUnit                          >= 1.2
-               , QuickCheck                     >= 2.4
-               , hspec
+               , HUnit                          >= 1.2  && < 1.7
+               , QuickCheck                     >= 2.4  && < 2.15
+               , hspec                          >= 2.10.6 && < 2.11
 
 library test-core
   import: test-defaults
@@ -835,8 +835,8 @@ test-suite monocypher
 common bench-defaults
  import:defaults
  hs-source-dirs: benchmarks/internal
- build-depends:  criterion-measurement     >= 0.1
-               , pretty
+ build-depends:  criterion-measurement     >= 0.1 && < 0.3
+               , pretty >= 1.1.3 && < 1.2
                , core
 
 library bench-types
@@ -865,7 +865,7 @@ benchmark primitives
   hs-source-dirs: benchmarks
   main-is: Main.hs
   type: exitcode-stdio-1.0
-  build-depends: pretty
+  build-depends: pretty >= 1.1.3 && < 1.2
                , core
                , implementation
                , bench-types