diff --git a/postgresql-binary.cabal b/postgresql-binary.cabal
--- a/postgresql-binary.cabal
+++ b/postgresql-binary.cabal
@@ -1,7 +1,7 @@
 name:
   postgresql-binary
 version:
-  0.12.1.1
+  0.12.1.2
 synopsis:
   Encoders and decoders for the PostgreSQL's binary format
 description:
@@ -70,27 +70,27 @@
     PostgreSQL.Binary.BuilderPrim
   build-depends:
     -- parsing:
-    binary-parser >= 0.5 && < 0.6,
+    binary-parser >=0.5 && <0.6,
     -- building:
-    bytestring-strict-builder >= 0.4.2 && < 0.5,
+    bytestring-strict-builder >=0.4.2 && <0.5,
     -- data:
-    aeson >= 0.9 && < 2,
-    uuid == 1.3.*,
-    time >= 1.4 && < 2,
-    scientific >= 0.2 && < 0.4,
-    bytestring >= 0.10.4 && < 0.11,
-    text >= 1 && < 2,
-    vector >= 0.10 && < 0.13,
-    network-ip >= 0.2 && < 1,
-    unordered-containers == 0.2.*,
-    containers == 0.5.*,
+    aeson >=0.9 && <2,
+    uuid ==1.3.*,
+    time >=1.4 && <2,
+    scientific >=0.2 && <0.4,
+    bytestring >=0.10.4 && <0.11,
+    text >=1 && <2,
+    vector >=0.10 && <0.13,
+    network-ip >=0.2 && <1,
+    unordered-containers ==0.2.*,
+    containers >=0.5 && <0.7,
     -- errors:
-    loch-th == 0.2.*,
-    placeholders == 0.1.*,
+    loch-th ==0.2.*,
+    placeholders ==0.1.*,
     -- general:
-    transformers >= 0.3 && < 0.6,
-    base-prelude >= 0.1.19 && < 2,
-    base >= 4.6 && < 5
+    transformers >=0.3 && <0.6,
+    base-prelude >=0.1.19 && <2,
+    base >=4.6 && <5
 
 -- This test-suite must be executed in a single-thread.
 test-suite tasty
@@ -116,24 +116,24 @@
   build-depends:
     -- testing:
     postgresql-binary,
-    postgresql-libpq == 0.9.*,
-    tasty >= 1 && < 2,
-    tasty-quickcheck >= 0.9 && < 0.11,
-    tasty-hunit >= 0.9 && < 0.11,
-    quickcheck-instances >= 0.3.11 && < 0.4,
-    QuickCheck >= 2.8.1 && < 3,
+    postgresql-libpq ==0.9.*,
+    QuickCheck >=2.8.1 && <3,
+    quickcheck-instances >=0.3.11 && <0.4,
+    tasty >=0.12 && <2,
+    tasty-hunit >=0.9 && <0.11,
+    tasty-quickcheck >=0.9 && <0.11,
     -- data:
     aeson,
-    json-ast == 0.3.*,
-    conversion == 1.*,
-    conversion-bytestring == 1.*,
-    conversion-text == 1.*,
-    network-ip >= 0.2 && < 1,
+    json-ast ==0.3.*,
+    conversion ==1.*,
+    conversion-bytestring ==1.*,
+    conversion-text ==1.*,
+    network-ip >=0.2 && <1,
     -- debugging:
-    loch-th == 0.2.*,
-    placeholders == 0.1.*,
+    loch-th ==0.2.*,
+    placeholders ==0.1.*,
     -- general:
-    rerebase >= 1.0.2 && < 2
+    rerebase >=1.0.2 && <2
 
 benchmark encoding
   type: 
@@ -154,9 +154,9 @@
   build-depends:
     postgresql-binary,
     -- benchmarking:
-    criterion >= 1.0 && < 1.2,
+    criterion >=1.0 && <2,
     -- general:
-    rerebase < 2
+    rerebase <2
 
 benchmark decoding
   type: 
@@ -177,6 +177,6 @@
   build-depends:
     postgresql-binary,
     -- benchmarking:
-    criterion >= 1.0 && < 1.2,
+    criterion >=1.0 && <2,
     -- general:
-    rerebase < 2
+    rerebase <2