diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+# 2.1.1
+* Bump aeson and time version in dependencies.
+
 # 2.1.0
 * GHC 8.0/8.2 compatible
 * merge web-routing modules, `Network.Routing.XXX` changed to `Data.Apiary.Routing.XXX`.
diff --git a/apiary.cabal b/apiary.cabal
--- a/apiary.cabal
+++ b/apiary.cabal
@@ -1,5 +1,5 @@
 name:                apiary
-version:             2.1.0
+version:             2.1.1
 synopsis:            Simple and type safe web framework that generate web API documentation.
 description:
   Simple and type safe web framework that can be automatically generate API documentation.
@@ -115,12 +115,12 @@
                      , blaze-markup         >=0.6   && <0.8
                      , case-insensitive     >=1.1   && <1.3
                      , vault                >=0.3   && <0.4
-                     , aeson                >=0.8   && <0.12
+                     , aeson                >=0.8   && <1.3
 
                      , data-default-class   >=0.0   && <0.1
                      , unordered-containers >=0.2   && <0.3
                      , hashable             >=1.1   && <1.3
-                     , time                 >=1.4   && <1.6
+                     , time                 >=1.4   && <1.9
                      , process              >=1.2   && <2.0
                      , unix-compat          >=0.4   && <0.5
                      , http-date            >=0.0   && <0.1
@@ -132,8 +132,8 @@
                      , hetero-dict          >=0.1.1 && <0.1.2
 
   hs-source-dirs:      src
-  ghc-options:         -O2 -Wall
-  ghc-prof-options:    -O2 -Wall -auto-all
+  ghc-options:         -Wall
+  ghc-prof-options:    -Wall -auto-all
   default-language:    Haskell2010
 
 test-suite tasty
@@ -153,7 +153,7 @@
                      , wai                  >=3.0   && <3.3
                      , wai-extra            >=3.0   && <3.1
                      , directory
-                     , aeson                >=0.8   && <0.12
+                     , aeson                >=0.8   && <1.3
 
   hs-source-dirs:      tests
   ghc-options:         -Wall -fno-warn-missing-signatures