diff --git a/Cargo.lock b/Cargo.lock
index cbad0666a..d550c5605 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -368,7 +368,7 @@ dependencies = [
  "hyper",
  "hyper-rustls",
  "hyper-staticfile",
- "indexmap 1.9.3",
+ "indexmap 2.0.0",
  "lazy_static",
  "libc",
  "mime_guess",
diff --git a/dropshot/Cargo.toml b/dropshot/Cargo.toml
index 7b42f4b59..c597f9ae4 100644
--- a/dropshot/Cargo.toml
+++ b/dropshot/Cargo.toml
@@ -21,7 +21,7 @@ form_urlencoded = "1.2.0"
 futures = "0.3.28"
 hostname = "0.3.0"
 http = "0.2.9"
-indexmap = "1.9.3"
+indexmap = "2.0.0"
 paste = "1.0.12"
 percent-encoding = "2.3.0"
 proc-macro2 = "1.0.63"