diff --git a/Cargo.lock b/Cargo.lock
index a0804b7..43247ae 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3995,7 +3995,7 @@ checksum = "af190c94f2773fdb3729c55b007a722abb5384da03bc0986df4c289bf5567e96"
 
 [[package]]
 name = "watchexec"
-version = "3.0.1"
+version = "4.0.0"
 dependencies = [
  "async-priority-channel",
  "async-recursion",
diff --git a/crates/cli/Cargo.toml b/crates/cli/Cargo.toml
index a0b0c6b..dcf05d2 100644
--- a/crates/cli/Cargo.toml
+++ b/crates/cli/Cargo.toml
@@ -84,7 +84,7 @@ version = "1.3.0"
 path = "../project-origins"
 
 [dependencies.watchexec]
-version = "3.0.1"
+version = "4.0.0"
 path = "../lib"
 
 [dependencies.watchexec-events]
diff --git a/crates/filterer/globset/Cargo.toml b/crates/filterer/globset/Cargo.toml
index 642c063..412891e 100644
--- a/crates/filterer/globset/Cargo.toml
+++ b/crates/filterer/globset/Cargo.toml
@@ -24,7 +24,7 @@ version = "3.0.0"
 path = "../../ignore-files"
 
 [dependencies.watchexec]
-version = "3.0.1"
+version = "4.0.0"
 path = "../../lib"
 
 [dependencies.watchexec-events]
diff --git a/crates/filterer/ignore/Cargo.toml b/crates/filterer/ignore/Cargo.toml
index 0d97918..3bcd2fb 100644
--- a/crates/filterer/ignore/Cargo.toml
+++ b/crates/filterer/ignore/Cargo.toml
@@ -26,7 +26,7 @@ version = "3.0.0"
 path = "../../ignore-files"
 
 [dependencies.watchexec]
-version = "3.0.1"
+version = "4.0.0"
 path = "../../lib"
 
 [dependencies.watchexec-events]
diff --git a/crates/lib/CHANGELOG.md b/crates/lib/CHANGELOG.md
index fa46584..8fed8a0 100644
--- a/crates/lib/CHANGELOG.md
+++ b/crates/lib/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## Next (YYYY-MM-DD)
 
+## v4.0.0 (2024-04-20)
+
 - Deps: replace command-group with process-wrap (in supervisor, but has flow-on effects)
 - Deps: miette 7
 - Deps: nix 0.28
diff --git a/crates/lib/Cargo.toml b/crates/lib/Cargo.toml
index cffd578..8d6fa85 100644
--- a/crates/lib/Cargo.toml
+++ b/crates/lib/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "watchexec"
-version = "3.0.1"
+version = "4.0.0"
 
 authors = ["Félix Saparelli <felix@passcod.name>", "Matt Green <mattgreenrocks@gmail.com>"]
 license = "Apache-2.0"