diff --git a/Cargo.lock b/Cargo.lock
index 38a193bedb..3b19e5cd95 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4186,9 +4186,9 @@ dependencies = [
 
 [[package]]
 name = "multimap"
-version = "0.8.3"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e5ce46fe64a9d73be07dcbe690a38ce1b293be448fd8ce1e6c1b8062c9f72c6a"
+checksum = "defc4c55412d89136f966bbb339008b474350e5e6e78d2714439c386b3137a03"
 dependencies = [
  "serde",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 70d8e3ea48..2f39e41e64 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -252,7 +252,7 @@ mime_guess = "2.0.4"
 mockall = "0.12"
 newtype_derive = "0.1.6"
 mg-admin-client = { path = "clients/mg-admin-client" }
-multimap = "0.8.1"
+multimap = "0.10.0"
 nexus-blueprint-execution = { path = "nexus/blueprint-execution" }
 nexus-client = { path = "clients/nexus-client" }
 nexus-db-model = { path = "nexus/db-model" }