diff --git a/diagrams-cairo.cabal b/diagrams-cairo.cabal
index 545bf72..b4603d7 100644
--- a/diagrams-cairo.cabal
+++ b/diagrams-cairo.cabal
@@ -53,29 +53,29 @@ Library
                        Diagrams.Backend.Cairo.Ptr
                        Diagrams.Backend.Cairo.Text
   Hs-source-dirs:      src
-  Build-depends:       base >= 4.2 && < 4.19,
-                       mtl >= 2.0 && < 2.4,
+  Build-depends:       base >=4.2 && <4.19,
+                       mtl >=2.0 && <2.4,
                        filepath,
-                       diagrams-core >= 1.3 && < 1.6,
-                       diagrams-lib >= 1.3 && < 1.5,
-                       cairo >= 0.12.4 && < 0.14,
-                       pango >= 0.12.5  && < 0.14,
+                       diagrams-core >=1.3 && <1.6,
+                       diagrams-lib >=1.3 && <1.5,
+                       cairo >=0.12.4 && <0.14,
+                       pango >=0.12.5 && <0.14,
                        colour,
-                       split >= 0.1.2 && < 0.3,
-                       containers >= 0.3 && < 0.7,
-                       lens >= 3.8 && < 5.3,
-                       data-default-class >= 0.0.1 && < 0.2,
-                       statestack >= 0.2 && < 0.4,
-                       JuicyPixels >= 3.1.3.2 && < 3.4,
-                       vector >= 0.10.0 && < 0.14,
-                       array >= 0.4.0 && < 0.6,
-                       bytestring >= 0.9 && < 0.12,
-                       optparse-applicative >= 0.13 && < 0.19,
-                       transformers >= 0.3 && <0.7,
-                       hashable >= 1.1 && < 1.5
+                       split >=0.1.2 && <0.3,
+                       containers >=0.3 && <0.7,
+                       lens >=3.8 && <5.3,
+                       data-default-class >=0.0.1 && <0.2,
+                       statestack >=0.2 && <0.4,
+                       JuicyPixels >=3.1.3.2 && <3.4,
+                       vector >=0.10.0 && <0.14,
+                       array >=0.4.0 && <0.6,
+                       bytestring >=0.9 && <0.12 || ^>=0.12.0,
+                       optparse-applicative >=0.13 && <0.19,
+                       transformers >=0.3 && <0.7,
+                       hashable >=1.1 && <1.5
 
   default-language:    Haskell2010
 
   if !os(windows)
     cpp-options: -DCMDLINELOOP
-    Build-depends:     unix >= 2.4 && < 2.9
+    Build-depends:     unix >=2.4 && <2.9