diff --git a/CHANGELOG b/CHANGELOG
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,5 +1,11 @@
 # CHANGELOG
 
+- 0.12.5.2 (2018-09-25)
+    * Bump `containers` dependency to 0.6
+    * Bump `network` dependency to 2.8
+    * Bump `QuickCheck` dependency to 2.12
+    * Bump `binary` dependency to 0.10
+
 - 0.12.5.1 (2018-06-12)
     * Fix build with GHC 7.6 and 7.8
 
diff --git a/websockets.cabal b/websockets.cabal
--- a/websockets.cabal
+++ b/websockets.cabal
@@ -1,5 +1,5 @@
 Name:    websockets
-Version: 0.12.5.1
+Version: 0.12.5.2
 
 Synopsis:
   A sensible and clean way to write WebSocket-capable servers in Haskell.
@@ -82,12 +82,12 @@
     attoparsec        >= 0.10   && < 0.14,
     base              >= 4.6    && < 5,
     base64-bytestring >= 0.1    && < 1.1,
-    binary            >= 0.8.1  && < 0.10,
+    binary            >= 0.8.1  && < 0.11,
     bytestring        >= 0.9    && < 0.11,
     bytestring-builder             < 0.11,
     case-insensitive  >= 0.3    && < 1.3,
-    containers        >= 0.3    && < 0.6,
-    network           >= 2.3    && < 2.8,
+    containers        >= 0.3    && < 0.7,
+    network           >= 2.3    && < 2.9,
     random            >= 1.0    && < 1.2,
     SHA               >= 1.5    && < 1.7,
     streaming-commons >= 0.1    && < 0.3,
@@ -131,7 +131,7 @@
 
   Build-depends:
     HUnit                      >= 1.2 && < 1.7,
-    QuickCheck                 >= 2.7 && < 2.12,
+    QuickCheck                 >= 2.7 && < 2.13,
     test-framework             >= 0.4 && < 0.9,
     test-framework-hunit       >= 0.2 && < 0.4,
     test-framework-quickcheck2 >= 0.2 && < 0.4,
@@ -139,12 +139,12 @@
     attoparsec        >= 0.10   && < 0.14,
     base              >= 4      && < 5,
     base64-bytestring >= 0.1    && < 1.1,
-    binary            >= 0.8.1  && < 0.10,
+    binary            >= 0.8.1  && < 0.11,
     bytestring        >= 0.9    && < 0.11,
     bytestring-builder             < 0.11,
     case-insensitive  >= 0.3    && < 1.3,
-    containers        >= 0.3    && < 0.6,
-    network           >= 2.3    && < 2.8,
+    containers        >= 0.3    && < 0.7,
+    network           >= 2.3    && < 2.9,
     random            >= 1.0    && < 1.2,
     SHA               >= 1.5    && < 1.7,
     streaming-commons >= 0.1    && < 0.3,
@@ -165,12 +165,12 @@
     attoparsec        >= 0.10   && < 0.14,
     base              >= 4      && < 5,
     base64-bytestring >= 0.1    && < 1.1,
-    binary            >= 0.8.1  && < 0.10,
+    binary            >= 0.8.1  && < 0.11,
     bytestring        >= 0.9    && < 0.11,
     bytestring-builder             < 0.11,
     case-insensitive  >= 0.3    && < 1.3,
-    containers        >= 0.3    && < 0.6,
-    network           >= 2.3    && < 2.8,
+    containers        >= 0.3    && < 0.7,
+    network           >= 2.3    && < 2.9,
     random            >= 1.0    && < 1.2,
     SHA               >= 1.5    && < 1.7,
     text              >= 0.10   && < 1.3,
@@ -193,12 +193,12 @@
     attoparsec        >= 0.10   && < 0.14,
     base              >= 4      && < 5,
     base64-bytestring >= 0.1    && < 1.1,
-    binary            >= 0.8.1  && < 0.10,
+    binary            >= 0.8.1  && < 0.11,
     bytestring        >= 0.9    && < 0.11,
     bytestring-builder             < 0.11,
     case-insensitive  >= 0.3    && < 1.3,
-    containers        >= 0.3    && < 0.6,
-    network           >= 2.3    && < 2.8,
+    containers        >= 0.3    && < 0.7,
+    network           >= 2.3    && < 2.9,
     random            >= 1.0    && < 1.2,
     SHA               >= 1.5    && < 1.7,
     text              >= 0.10   && < 1.3,
@@ -219,12 +219,12 @@
         attoparsec        >= 0.10   && < 0.14,
         base              >= 4      && < 5,
         base64-bytestring >= 0.1    && < 1.1,
-        binary            >= 0.8.1  && < 0.10,
+        binary            >= 0.8.1  && < 0.11,
         bytestring        >= 0.9    && < 0.11,
         bytestring-builder             < 0.11,
         case-insensitive  >= 0.3    && < 1.3,
-        containers        >= 0.3    && < 0.6,
-        network           >= 2.3    && < 2.8,
+        containers        >= 0.3    && < 0.7,
+        network           >= 2.3    && < 2.9,
         random            >= 1.0    && < 1.2,
         SHA               >= 1.5    && < 1.7,
         text              >= 0.10   && < 1.3,