diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,7 @@
+# 0.2.0.1
+
+- Fixes the benchmarks, and builds them in CI to avoid regressing them again.
+
 # 0.2.0.0
 
 - Adds `listen`, `listens`, and `censor` operations to `Writer`.
diff --git a/benchmark/Bench.hs b/benchmark/Bench.hs
--- a/benchmark/Bench.hs
+++ b/benchmark/Bench.hs
@@ -12,9 +12,9 @@
 main = defaultMain
   [ bgroup "WriterC"
     [ bgroup "Eff"
-      [ bench "100"       $ whnf (run . execWriter @_ @_ @(Sum Int) . tellLoop) 100
-      , bench "100000"    $ whnf (run . execWriter @_ @_ @(Sum Int) . tellLoop) 100000
-      , bench "100000000" $ whnf (run . execWriter @_ @_ @(Sum Int) . tellLoop) 100000000
+      [ bench "100"       $ whnf (run . execWriter @(Sum Int) . tellLoop) 100
+      , bench "100000"    $ whnf (run . execWriter @(Sum Int) . tellLoop) 100000
+      , bench "100000000" $ whnf (run . execWriter @(Sum Int) . tellLoop) 100000000
       ]
     , bgroup "standalone"
       [ bench "100"       $ whnf (fst . runVoidC . flip runWriterC (Sum (0 :: Int)) . tellLoop) 100
diff --git a/fused-effects.cabal b/fused-effects.cabal
--- a/fused-effects.cabal
+++ b/fused-effects.cabal
@@ -1,5 +1,5 @@
 name:                fused-effects
-version:             0.2.0.0
+version:             0.2.0.1
 synopsis:            A fast, flexible, fused effect system.
 description:         A fast, flexible, fused effect system, à la Effect Handlers in Scope, Monad Transformers and Modular Algebraic Effects: What Binds Them Together, and Fusion for Free—Efficient Algebraic Effect Handlers.
 homepage:            https://github.com/robrix/fused-effects