diff --git a/Cargo.lock b/Cargo.lock
index 90a9f38220..cf4de8bbea 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -205,20 +205,6 @@ dependencies = [
  "cc",
 ]
 
-[[package]]
-name = "console"
-version = "0.11.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c0994e656bba7b922d8dd1245db90672ffb701e684e45be58f20719d69abc5a"
-dependencies = [
- "encode_unicode",
- "lazy_static",
- "libc",
- "terminal_size",
- "termios",
- "winapi 0.3.9",
-]
-
 [[package]]
 name = "crc32fast"
 version = "1.2.0"
@@ -298,12 +284,6 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "69b26e475fd29098530e709294e94e661974c851aed42512793f120fed4e199f"
 
-[[package]]
-name = "dtoa"
-version = "0.4.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "134951f4028bdadb9b84baf4232681efbf277da25144b9b0ad65df75946c422b"
-
 [[package]]
 name = "either"
 version = "1.5.3"
@@ -319,12 +299,6 @@ dependencies = [
  "log",
 ]
 
-[[package]]
-name = "encode_unicode"
-version = "0.3.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a357d28ed41a50f9c765dbfe56cbc04a64e53e5fc58ba79fbc34c10ef3df831f"
-
 [[package]]
 name = "env_logger"
 version = "0.7.1"
@@ -537,20 +511,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "insta"
-version = "0.16.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "617e921abc813f96a3b00958c079e7bf1e2db998f8a04f1546dd967373a418ee"
-dependencies = [
- "console",
- "difference",
- "lazy_static",
- "serde",
- "serde_json",
- "serde_yaml",
-]
-
 [[package]]
 name = "instant"
 version = "0.1.6"
@@ -665,12 +625,6 @@ dependencies = [
  "cmake",
 ]
 
-[[package]]
-name = "linked-hash-map"
-version = "0.5.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8dd5a6d5999d9907cda8ed67bbd137d3af8085216c2ac62de5be860bd41f304a"
-
 [[package]]
 name = "lock_api"
 version = "0.4.1"
@@ -1128,7 +1082,6 @@ dependencies = [
  "chalk-solve",
  "ena",
  "expect",
- "insta",
  "itertools",
  "log",
  "ra_arena",
@@ -1659,18 +1612,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "serde_yaml"
-version = "0.8.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ae3e2dd40a7cdc18ca80db804b7f461a39bb721160a85c9a1fa30134bf3c02a5"
-dependencies = [
- "dtoa",
- "linked-hash-map",
- "serde",
- "yaml-rust",
-]
-
 [[package]]
 name = "sharded-slab"
 version = "0.0.9"
@@ -1757,25 +1698,6 @@ dependencies = [
  "winapi-util",
 ]
 
-[[package]]
-name = "terminal_size"
-version = "0.1.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a14cd9f8c72704232f0bfc8455c0e861f0ad4eb60cc9ec8a170e231414c1e13"
-dependencies = [
- "libc",
- "winapi 0.3.9",
-]
-
-[[package]]
-name = "termios"
-version = "0.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6f0fcee7b24a25675de40d5bb4de6e41b0df07bc9856295e7e2b3a3600c400c2"
-dependencies = [
- "libc",
-]
-
 [[package]]
 name = "test_utils"
 version = "0.1.0"
@@ -2065,12 +1987,3 @@ dependencies = [
  "quote",
  "walkdir",
 ]
-
-[[package]]
-name = "yaml-rust"
-version = "0.4.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "39f0c922f1a334134dc2f7a8b67dc5d25f0735263feec974345ff706bcf20b0d"
-dependencies = [
- "linked-hash-map",
-]
diff --git a/crates/ra_hir_ty/Cargo.toml b/crates/ra_hir_ty/Cargo.toml
index 548a3fc1f4..cdabb359f2 100644
--- a/crates/ra_hir_ty/Cargo.toml
+++ b/crates/ra_hir_ty/Cargo.toml
@@ -33,7 +33,6 @@ chalk-ir = { version = "0.18.0" }
 chalk-recursive = { version = "0.18.0" }
 
 [dev-dependencies]
-insta = "0.16.0"
 expect = { path = "../expect" }
 
 tracing = "0.1"
diff --git a/crates/ra_hir_ty/src/tests.rs b/crates/ra_hir_ty/src/tests.rs
index 59a21092ec..45bc14c37f 100644
--- a/crates/ra_hir_ty/src/tests.rs
+++ b/crates/ra_hir_ty/src/tests.rs
@@ -34,8 +34,8 @@ use crate::{
 };
 
 // These tests compare the inference results for all expressions in a file
-// against snapshots of the expected results using insta. Use cargo-insta to
-// update the snapshots.
+// against snapshots of the expected results using expect. Use
+// `env UPDATE_EXPECT=1 cargo test -p ra_hir_ty` to update the snapshots.
 
 fn setup_tracing() -> tracing::subscriber::DefaultGuard {
     use tracing_subscriber::{layer::SubscriberExt, EnvFilter, Registry};
diff --git a/docs/dev/architecture.md b/docs/dev/architecture.md
index cee916c096..d0c6eea61f 100644
--- a/docs/dev/architecture.md
+++ b/docs/dev/architecture.md
@@ -170,8 +170,7 @@ The innermost and most elaborate boundary is `hir`. It has a much richer
 vocabulary of types than `ide`, but the basic testing setup is the same: we
 create a database, run some queries, assert result.
 
-For comparisons, we use [insta](https://github.com/mitsuhiko/insta/) library for
-snapshot testing.
+For comparisons, we use the `expect` crate for snapshot testing.
 
 To test various analysis corner cases and avoid forgetting about old tests, we
 use so-called marks. See the `marks` module in the `test_utils` crate for more.