diff --git a/Cargo.toml b/Cargo.toml
index 6c24de5d..2dbba300 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,7 +35,7 @@ anyhow = { version = "1.0", optional = true }
 chrono = { version = "0.4", optional = true }
 eyre = { version = ">= 0.4, < 0.7", optional = true }
 hashbrown = { version = ">= 0.9, < 0.13", optional = true }
-indexmap = { version = ">= 1.6, < 1.8", optional = true }
+indexmap = { version = "1.6", optional = true }
 num-bigint = { version = "0.4", optional = true }
 num-complex = { version = ">= 0.2, < 0.5", optional = true }
 serde = { version = "1.0", optional = true }
diff --git a/newsfragments/2849.packaging.md b/newsfragments/2849.packaging.md
new file mode 100644
index 00000000..62084844
--- /dev/null
+++ b/newsfragments/2849.packaging.md
@@ -0,0 +1 @@
+Relax dependency on Rust crate `indexmap` to cover `>= 1.6, < 2`