diff --git a/stack.yaml b/stack.yaml
index 0c0da960..ff7a2fc6 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -15,10 +15,9 @@ extra-deps:
   - git: https://github.com/tbidne/fs-utils.git
     commit: 5406cea74491f382478e70734535c62fe6deef7d
   - git: https://github.com/tbidne/monad-effects.git
-    commit: aeecb47f4aa144e686a7d596670bade5bf47e7d4
+    commit: 8021f9a0855e644d91b73e6b2bcf20406ebbebb8
     subdirs:
       - lib/effects-async
-      - lib/effects-exceptions
       - lib/effects-env
       - lib/effects-fs
       - lib/effects-ioref
diff --git a/stack.yaml.lock b/stack.yaml.lock
index 77c21699..c822c542 100644
--- a/stack.yaml.lock
+++ b/stack.yaml.lock
@@ -63,159 +63,146 @@ packages:
     commit: 5406cea74491f382478e70734535c62fe6deef7d
     git: https://github.com/tbidne/fs-utils.git
 - completed:
-    commit: aeecb47f4aa144e686a7d596670bade5bf47e7d4
+    commit: 8021f9a0855e644d91b73e6b2bcf20406ebbebb8
     git: https://github.com/tbidne/monad-effects.git
     name: effects-async
     pantry-tree:
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       size: 236
     subdir: lib/effects-async
     version: '0.1'
   original:
-    commit: aeecb47f4aa144e686a7d596670bade5bf47e7d4
+    commit: 8021f9a0855e644d91b73e6b2bcf20406ebbebb8
     git: https://github.com/tbidne/monad-effects.git
     subdir: lib/effects-async
 - completed:
-    commit: aeecb47f4aa144e686a7d596670bade5bf47e7d4
-    git: https://github.com/tbidne/monad-effects.git
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-  original:
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-    git: https://github.com/tbidne/monad-effects.git
-    subdir: lib/effects-exceptions
-- completed:
-    commit: aeecb47f4aa144e686a7d596670bade5bf47e7d4
+    commit: 8021f9a0855e644d91b73e6b2bcf20406ebbebb8
     git: https://github.com/tbidne/monad-effects.git
     name: effects-env
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     subdir: lib/effects-env
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+    commit: 8021f9a0855e644d91b73e6b2bcf20406ebbebb8
     git: https://github.com/tbidne/monad-effects.git
     subdir: lib/effects-env
 - completed:
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+    commit: 8021f9a0855e644d91b73e6b2bcf20406ebbebb8
     git: https://github.com/tbidne/monad-effects.git
     name: effects-fs
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     subdir: lib/effects-fs
     version: '0.1'
   original:
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+    commit: 8021f9a0855e644d91b73e6b2bcf20406ebbebb8
     git: https://github.com/tbidne/monad-effects.git
     subdir: lib/effects-fs
 - completed:
-    commit: aeecb47f4aa144e686a7d596670bade5bf47e7d4
+    commit: 8021f9a0855e644d91b73e6b2bcf20406ebbebb8
     git: https://github.com/tbidne/monad-effects.git
     name: effects-ioref
     pantry-tree:
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     subdir: lib/effects-ioref
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+    commit: 8021f9a0855e644d91b73e6b2bcf20406ebbebb8
     git: https://github.com/tbidne/monad-effects.git
     subdir: lib/effects-ioref
 - completed:
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+    commit: 8021f9a0855e644d91b73e6b2bcf20406ebbebb8
     git: https://github.com/tbidne/monad-effects.git
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     git: https://github.com/tbidne/monad-effects.git
     subdir: lib/effects-optparse
 - completed:
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     git: https://github.com/tbidne/monad-effects.git
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     git: https://github.com/tbidne/monad-effects.git
     subdir: lib/effects-stm
 - completed:
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     git: https://github.com/tbidne/monad-effects.git
     name: effects-time
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     subdir: lib/effects-time
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     git: https://github.com/tbidne/monad-effects.git
     subdir: lib/effects-time
 - completed:
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+    commit: 8021f9a0855e644d91b73e6b2bcf20406ebbebb8
     git: https://github.com/tbidne/monad-effects.git
     name: effects-terminal
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     subdir: lib/effects-terminal
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+    commit: 8021f9a0855e644d91b73e6b2bcf20406ebbebb8
     git: https://github.com/tbidne/monad-effects.git
     subdir: lib/effects-terminal
 - completed:
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+    commit: 8021f9a0855e644d91b73e6b2bcf20406ebbebb8
     git: https://github.com/tbidne/monad-effects.git
     name: effects-thread
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     git: https://github.com/tbidne/monad-effects.git
     subdir: lib/effects-thread
 - completed:
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+    commit: 8021f9a0855e644d91b73e6b2bcf20406ebbebb8
     git: https://github.com/tbidne/monad-effects.git
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+    commit: 8021f9a0855e644d91b73e6b2bcf20406ebbebb8
     git: https://github.com/tbidne/monad-effects.git
     subdir: lib/effects-typed-process
 - completed:
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+    commit: 8021f9a0855e644d91b73e6b2bcf20406ebbebb8
     git: https://github.com/tbidne/monad-effects.git
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+    commit: 8021f9a0855e644d91b73e6b2bcf20406ebbebb8
     git: https://github.com/tbidne/monad-effects.git
     subdir: lib/effects-unix-compat
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