diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,12 @@
 # Changelog
 
+#### 0.7.3.4
+
+* Fix compilation on GHC 7.2 and 7.4
+
 #### 0.7.3.3
 
-* Allow `tagged 0.8.*` in test-suit
+* Allow `tagged 0.8.*` in test-suite
 
 #### 0.7.3.2
 
diff --git a/json-schema.cabal b/json-schema.cabal
--- a/json-schema.cabal
+++ b/json-schema.cabal
@@ -1,5 +1,5 @@
 name:                json-schema
-version:             0.7.3.3
+version:             0.7.3.4
 synopsis:            Types and type classes for defining JSON schemas.
 description:         Types and type classes for defining JSON schemas.
                      .
@@ -34,18 +34,21 @@
     Data.JSON.Schema.Types
     Data.JSON.Schema.Validate
   build-depends:
-      base == 4.*
+      base >= 4.4 && < 5
     , aeson >= 0.7 && < 0.9
     , containers >= 0.3 && < 0.6
     , generic-aeson == 0.2.*
     , generic-deriving >= 1.6 && < 1.8
     , mtl >= 2.1 && < 2.3
     , scientific == 0.3.*
-    , tagged >= 0.2 && < 0.9
     , text >= 0.10 && < 1.3
     , time >= 1.2 && < 1.6
     , unordered-containers == 0.2.*
     , vector == 0.10.*
+  if impl(ghc < 7.8)
+    build-depends: tagged >= 0.2 && < 0.9
+  if impl(ghc < 7.6)
+    build-depends: ghc-prim == 0.2.*
 
 test-suite json-schema-generic-aeson-tests
   ghc-options:       -Wall
@@ -57,16 +60,19 @@
     Test.Util
     Test.Validate
   build-depends:
-      base
+      base >= 4.4 && < 5
     , aeson >= 0.7 && < 0.9
     , aeson-utils >= 0.2 && < 0.4
     , attoparsec >= 0.10 && < 0.13
     , bytestring >= 0.10 && < 0.12
     , generic-aeson == 0.2.*
     , json-schema
-    , tagged >= 0.2 && < 0.9
     , tasty == 0.10.*
     , tasty-hunit == 0.9.*
     , tasty-th == 0.1.*
     , text >= 0.10 && < 1.3
     , vector == 0.10.*
+  if impl(ghc < 7.8)
+    build-depends: tagged >= 0.2 && < 0.9
+  if impl(ghc < 7.6)
+    build-depends: ghc-prim == 0.2.*