diff --git a/hledger-ui/package.yaml b/hledger-ui/package.yaml
index 07d480115..0d487e05f 100644
--- a/hledger-ui/package.yaml
+++ b/hledger-ui/package.yaml
@@ -97,7 +97,7 @@ library:
   - doclayout >=0.3 && <0.6
   - extra >=1.7.11
   - filepath
-  - fsnotify >=0.4 && <0.5
+  - fsnotify >=0.4.2.0 && <0.5
   - githash >=0.1.6.2
   - microlens >=0.4
   - microlens-platform >=0.2.3.1
diff --git a/stack8.10.yaml b/stack8.10.yaml
index 7326691df..003fbb1d3 100644
--- a/stack8.10.yaml
+++ b/stack8.10.yaml
@@ -30,7 +30,7 @@ extra-deps:
 # for hledger-ui:
 - brick-2.3.1
 - bimap-0.5.0
-- fsnotify-0.4.0.0
+- fsnotify-0.4.2.0
 - text-zipper-0.13
 - vty-6.2
 - vty-crossplatform-0.4.0.0
diff --git a/stack9.0.yaml b/stack9.0.yaml
index 5ab5d12f7..9881b14f6 100644
--- a/stack9.0.yaml
+++ b/stack9.0.yaml
@@ -31,7 +31,7 @@ extra-deps:
 - vty-unix-0.2.0.0
 - vty-windows-0.2.0.2
 - text-zipper-0.13
-- fsnotify-0.4.1.0
+- fsnotify-0.4.2.0
 # for hledger-web:
 # for Shake.hs:
 
diff --git a/stack9.2.yaml b/stack9.2.yaml
index e5b6b83e0..09d14841f 100644
--- a/stack9.2.yaml
+++ b/stack9.2.yaml
@@ -21,7 +21,7 @@ extra-deps:
 - vty-unix-0.2.0.0
 - vty-windows-0.2.0.2
 - text-zipper-0.13
-- fsnotify-0.4.1.0
+- fsnotify-0.4.2.0
 # for hledger-web:
 # for Shake.hs: