diff --git a/packaging/windows/INSTALL.md b/packaging/windows/INSTALL.md
index f35e7d4..5a5f56d 100644
--- a/packaging/windows/INSTALL.md
+++ b/packaging/windows/INSTALL.md
@@ -8,7 +8,7 @@ it once, then you and I connect directly to each other.
 
 ## 1. Install it
 
-1. Double-click **`peerspeak-0.3.0-setup.exe`** (the file I sent you).
+1. Double-click **`peerspeak-0.4.0-setup.exe`** (the file I sent you).
 
 2. **Windows will probably show a blue "Windows protected your PC" warning.**
    This is normal — it shows up for any app that isn't from a big company with a
diff --git a/packaging/windows/README.md b/packaging/windows/README.md
index 29e7525..cef8ce9 100644
--- a/packaging/windows/README.md
+++ b/packaging/windows/README.md
@@ -12,7 +12,7 @@ runtime, so there are no extra DLLs to bundle. The installer payload is just the
 ## Version compatibility
 
 The installer version tracks the crate version in `Cargo.toml` (currently
-**0.3.0**) — keep `MyAppVersion` in `peerspeak.iss` in sync when it changes.
+**0.4.0**) — keep `MyAppVersion` in `peerspeak.iss` in sync when it changes.
 
 Per `VERSIONING.md`, a **MINOR** bump in `0.x` is a **breaking wire change**:
 peers on different MINOR versions can't connect (they fail fast at the
diff --git a/packaging/windows/peerspeak.iss b/packaging/windows/peerspeak.iss
index e7f99ce..a8e38d6 100644
--- a/packaging/windows/peerspeak.iss
+++ b/packaging/windows/peerspeak.iss
@@ -12,7 +12,7 @@
 ; (x86_64-pc-windows-gnu, statically linked -- no extra DLLs needed).
 
 #define MyAppName "PeerSpeak"
-#define MyAppVersion "0.3.0"
+#define MyAppVersion "0.4.0"
 #define MyAppPublisher "mollusk"
 #define MyAppExeName "peerspeak.exe"