diff --git a/Cargo.lock b/Cargo.lock
index d87c8797b53..59304edf004 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3323,7 +3323,7 @@ dependencies = [
 [[package]]
 name = "propolis-client"
 version = "0.1.0"
-source = "git+https://github.com/oxidecomputer/propolis?rev=3a4fd8fa54ce8e1117bfa259bea39bca87f8ea14#3a4fd8fa54ce8e1117bfa259bea39bca87f8ea14"
+source = "git+https://github.com/oxidecomputer/propolis?rev=abd372deb0a7dfa33f138f7741c5107184fa7088#abd372deb0a7dfa33f138f7741c5107184fa7088"
 dependencies = [
  "crucible",
  "reqwest",
diff --git a/package-manifest.toml b/package-manifest.toml
index fedaf7d8ed3..f7512e1a32b 100644
--- a/package-manifest.toml
+++ b/package-manifest.toml
@@ -89,5 +89,7 @@ zone = true
 [external_package.propolis-server.source]
 type = "prebuilt"
 repo = "propolis"
-commit = "e984409a425df97338efa2c53ba3e40c73668638"
-sha256 = "206ef42e90d157e3314f4745ddb4422b3c93a16881749824037853e6f39f3762"
+commit = "abd372deb0a7dfa33f138f7741c5107184fa7088"
+# The SHA256 digest is automatically posted to:
+# https://buildomat.eng.oxide.computer/public/file/oxidecomputer/propolis/image/<commit>/propolis-server.sha256.txt
+sha256 = "80eb60d7c1eb15d261baeb3a4e9179beff491b5cc20bfb172960e78c5d331b94"
diff --git a/sled-agent/Cargo.toml b/sled-agent/Cargo.toml
index 379bfdceed1..1891328b1b5 100644
--- a/sled-agent/Cargo.toml
+++ b/sled-agent/Cargo.toml
@@ -23,7 +23,7 @@ omicron-common = { path = "../common" }
 p256 = "0.9.0"
 percent-encoding = "2.1.0"
 progenitor = { git = "https://github.com/oxidecomputer/progenitor" }
-propolis-client = { git = "https://github.com/oxidecomputer/propolis", rev = "3a4fd8fa54ce8e1117bfa259bea39bca87f8ea14" }
+propolis-client = { git = "https://github.com/oxidecomputer/propolis", rev = "abd372deb0a7dfa33f138f7741c5107184fa7088" }
 rand = { version = "0.8.5", features = ["getrandom"] }
 reqwest = { version = "0.11.8", default-features = false, features = ["rustls-tls", "stream"] }
 schemars = { version = "0.8", features = [ "chrono", "uuid" ] }
diff --git a/sled-agent/src/instance.rs b/sled-agent/src/instance.rs
index 4c9b8656b8a..142037515c3 100644
--- a/sled-agent/src/instance.rs
+++ b/sled-agent/src/instance.rs
@@ -89,14 +89,14 @@ async fn wait_for_http_server(
     backoff::retry_notify(
         backoff::internal_service_policy(),
         || async {
-            // This request is nonsensical - we don't expect an instance to be
-            // using the nil UUID - but getting a response that isn't a
-            // connection-based error informs us the HTTP server is alive.
-            match client.instance_get(Uuid::nil()).await {
+            // This request is nonsensical - we don't expect an instance to
+            // exist - but getting a response that isn't a connection-based
+            // error informs us the HTTP server is alive.
+            match client.instance_get().await {
                 Ok(_) => return Ok(()),
                 Err(value) => {
                     if let propolis_client::Error::Status(_) = &value {
-                        // This means the propolis server responded to our garbage
+                        // This means the propolis server responded to our
                         // request, instead of a connection error.
                         return Ok(());
                     }
@@ -254,7 +254,7 @@ impl InstanceInner {
             .as_ref()
             .expect("Propolis client should be initialized before usage")
             .client
-            .instance_state_put(*self.id(), request)
+            .instance_state_put(request)
             .await?;
         Ok(())
     }
@@ -590,19 +590,16 @@ impl Instance {
         //
         // They aren't modified after being initialized, so it's fine to grab
         // a copy.
-        let (instance_id, client) = {
+        let client = {
             let inner = self.inner.lock().await;
-            let id = *inner.id();
-            let client = inner.running_state.as_ref().unwrap().client.clone();
-            (id, client)
+            inner.running_state.as_ref().unwrap().client.clone()
         };
 
         let mut gen = 0;
         loop {
             // State monitoring always returns the most recent state/gen pair
             // known to Propolis.
-            let response =
-                client.instance_state_monitor(instance_id, gen).await?;
+            let response = client.instance_state_monitor(gen).await?;
             let reaction =
                 self.inner.lock().await.observe_state(response.state).await?;