diff --git a/octane.cabal b/octane.cabal
--- a/octane.cabal
+++ b/octane.cabal
@@ -3,7 +3,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           octane
-version:        0.4.2
+version:        0.4.3
 synopsis:       Parse Rocket League replays.
 description:    Octane parses Rocket League replays.
 category:       Game
@@ -68,7 +68,7 @@
   main-is: Executable.hs
   hs-source-dirs:
       executable
-  ghc-options: -Wall
+  ghc-options: -Wall -rtsopts -threaded -with-rtsopts=-N
   build-depends:
       base
     , octane
@@ -79,7 +79,7 @@
   main-is: TestSuite.hs
   hs-source-dirs:
       test-suite
-  ghc-options: -Wall -threaded
+  ghc-options: -Wall -rtsopts -threaded -with-rtsopts=-N
   build-depends:
       base
     , binary
@@ -87,7 +87,7 @@
     , bytestring
     , containers
     , octane
-    , tasty ==0.11.*
+    , tasty >=0.10 && <0.12
     , tasty-hspec ==1.1.*
   other-modules:
       Octane.MainSpec
@@ -118,7 +118,7 @@
   main-is: Benchmark.hs
   hs-source-dirs:
       benchmark
-  ghc-options: -Wall -threaded
+  ghc-options: -Wall -rtsopts -threaded -with-rtsopts=-N
   build-depends:
       base
     , binary
diff --git a/package.yaml b/package.yaml
--- a/package.yaml
+++ b/package.yaml
@@ -8,7 +8,10 @@
     - containers
     - criterion ==1.1.*
     - octane
-    ghc-options: -threaded
+    ghc-options:
+    - -rtsopts
+    - -threaded
+    - -with-rtsopts=-N
     main: Benchmark.hs
     source-dirs: benchmark
 category: Game
@@ -18,6 +21,10 @@
     dependencies:
     - base
     - octane
+    ghc-options:
+    - -rtsopts
+    - -threaded
+    - -with-rtsopts=-N
     main: Executable.hs
     source-dirs: executable
 extra-source-files:
@@ -53,9 +60,12 @@
     - bytestring
     - containers
     - octane
-    - tasty ==0.11.*
+    - tasty >=0.10 && <0.12
     - tasty-hspec ==1.1.*
-    ghc-options: -threaded
+    ghc-options:
+    - -rtsopts
+    - -threaded
+    - -with-rtsopts=-N
     main: TestSuite.hs
     source-dirs: test-suite
-version: '0.4.2'
+version: '0.4.3'
diff --git a/stack.yaml b/stack.yaml
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,3 +1,3 @@
 install-ghc: true
 require-stack-version: ! '>=1.0.4'
-resolver: nightly-2016-03-17
+resolver: nightly-2016-03-22