Relax more constraints in cabal file

fibon.cabal

@@ -101,16 +101,16 @@ Executable fibon-run
                   config
   build-depends:  base >= 4 && < 5
                 , containers
-                , mtl         == 1.1.*
+                , mtl         >= 1.0 && < 2.1
                 , directory   >= 1.0 && < 1.2
                 , filepath    >= 1.1 && < 1.3
                 , hslogger    >= 1.0 && < 1.2
                 , process     == 1.0.*
                 , time        >= 1.1 && < 1.3
                 , old-locale  == 1.0.*
                 , old-time    == 1.0.*
-                , statistics  >= 0.6 && < 0.8.1
-                , vector      >= 0.6 && < 0.7.1
+                , statistics  >= 0.6 && < 0.9
+                , vector      >= 0.6 && < 0.8
                 , bytestring  == 0.9.*
                 , cereal      == 0.3.*
                 , syb         >= 0.1 && < 0.4
@@ -135,14 +135,14 @@ Executable fibon-analyse
   if (flag(analyse))
     build-depends:    base >= 4 && < 5
                     , containers
-                    , mtl        == 1.1.*
+                    , mtl         >= 1.0 && < 2.1
                     , filepath    >= 1.1 && < 1.3
                     , bytestring == 0.9.*
                     , tabular    == 0.2.*
-                    , vector     >= 0.6 && < 0.7.1
-                    , statistics >= 0.6 && < 0.8.1
+                    , vector     >= 0.6 && < 0.8
+                    , statistics >= 0.6 && < 0.9
                     , regex-compat == 0.93.*
-                    , attoparsec == 0.8.*
+                    , attoparsec >= 0.8.5.2 && < 0.8.6
                     , bytestring-lexing == 0.2.*
                     , cereal     == 0.3.*
                     , syb         >= 0.1 && < 0.4
@@ -160,15 +160,17 @@ Executable fibon-nofib
   if (flag(nofib))
     build-depends:  base >= 4 && < 5
                   , containers
-                  , mtl         == 1.1.*
+                  , mtl         >= 1.1
                   , filepath    >= 1.1 && < 1.3
                   , directory   >= 1.0 && < 1.2
-                  , Cabal       == 1.8.*
-                  , process     == 1.0.*
+                  , Cabal       >= 1.8
+                  , process     >= 1.0
                   , hslogger    >= 1.0 && < 1.2
                   , statistics >= 0.6 && < 0.8.1
                   , syb         >= 0.1 && < 0.4
-                  , cereal      == 0.3.*
-                  , bytestring  == 0.9.*
-                  , vector      == 0.6.*
+                  , cereal      >= 0.3
+                  , bytestring  >= 0.9
+                  , vector      >= 0.6
                   , time        >= 1.1 && < 1.3
+                  , old-time    >= 1.0
+                  , old-locale  >= 1.0