added correct version bounds for dependencies (#41)

Author: FullstackGJJ

docopt.cabal

@@ -44,8 +44,8 @@ library
                       System.Console.Docopt.Public
 
   build-depends:      base >= 4.9 && < 5.0,
-                      parsec >= 3.1.0,
-                      containers
+                      parsec >= 3.1.14 && < 3.2,
+                      containers >= 0.6.2 && < 0.7
 
   ghc-options:        -Wall
                       -fno-warn-unused-binds
@@ -57,8 +57,8 @@ library
     exposed-modules:  System.Console.Docopt
     other-modules:    System.Console.Docopt.QQ
                       System.Console.Docopt.QQ.Instances
-    build-depends:    template-haskell,
-                      th-lift
+    build-depends:    template-haskell >= 2.15.0 && < 2.16,
+                      th-lift >= 0.8.2 && < 0.9
 
 test-suite tests
   type:               exitcode-stdio-1.0
@@ -73,17 +73,17 @@ test-suite tests
                       -fno-warn-orphans
 
   build-depends:      base,
-                      parsec,
-                      containers,
+                      parsec >= 3.1.14 && < 3.2,
+                      containers >= 0.6.2 && < 0.7,
                       docopt,
                       HUnit,
                       split,
                       ansi-terminal,
                       aeson,
                       bytestring,
                       text,
-                      template-haskell,
-                      th-lift
+                      template-haskell >= 2.15.0 && < 2.16,
+                      th-lift >= 0.8.2 && < 0.9
 
   other-modules:      System.Console.Docopt
                       System.Console.Docopt.ApplicativeParsec