diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## 0.14.3
+### Changed
+- Remove `-O2`.
+
 ## 0.14.2
 ### Changed
 - Target LTS Haskell 12.26 to attempt to fix freezing bug.
diff --git a/haskoin-store.cabal b/haskoin-store.cabal
--- a/haskoin-store.cabal
+++ b/haskoin-store.cabal
@@ -4,10 +4,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: b30a97088c5dd987291b4fe243504c3cb3e121a9a1294c8e965b2957b51cb755
+-- hash: 2d13c165687d6e63451a8013fb3a56c2ae121935b07926099415a447dcfb0a03
 
 name:           haskoin-store
-version:        0.14.2
+version:        0.14.3
 synopsis:       Storage and index for Bitcoin and Bitcoin Cash
 description:    Store blocks, transactions, and balances for Bitcoin or Bitcoin Cash, and make that information via REST API.
 category:       Bitcoin, Finance, Network
@@ -79,7 +79,7 @@
       Paths_haskoin_store
   hs-source-dirs:
       app
-  ghc-options: -threaded -rtsopts -with-rtsopts=-N -O2
+  ghc-options: -threaded -rtsopts -with-rtsopts=-N
   build-depends:
       aeson
     , base >=4.9 && <5