diff --git a/Cargo.lock b/Cargo.lock
index 451c409e..0bbdd326 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -605,9 +605,9 @@ checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
 
 [[package]]
 name = "indexmap"
-version = "1.3.1"
+version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b54058f0a6ff80b6803da8faf8997cde53872b38f4023728f6830b06cd3c0dc"
+checksum = "076f042c5b7b98f31d205f1249267e12a6518c1481e9dae9764af19b707d2292"
 dependencies = [
  "autocfg 1.0.0",
 ]
diff --git a/zebra-network/Cargo.toml b/zebra-network/Cargo.toml
index c40fbecf..a3375c28 100644
--- a/zebra-network/Cargo.toml
+++ b/zebra-network/Cargo.toml
@@ -15,7 +15,7 @@ chrono = "0.4"
 hex = "0.4"
 # indexmap has rayon support for parallel iteration,
 # which we don't use, so disable it to drop the dependencies.
-indexmap = { version = "1.2", default-features = false }
+indexmap = { version = "1.3", default-features = false }
 pin-project = "0.4"
 proptest = "0.9"
 proptest-derive = "0.1.0"