diff --git a/Cargo.lock b/Cargo.lock
index df83c9948d8..38782553116 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -333,9 +333,9 @@ checksum = "9bda8e21c04aca2ae33ffc2fd8c23134f3cac46db123ba97bd9d3f3b8a4a85e1"
 
 [[package]]
 name = "either"
-version = "1.8.1"
+version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7fcaabb2fef8c910e7f4c7ce9f67a1283a1715879a7c230ca9d6d1ae31f16d91"
+checksum = "a26ae43d7bcc3b814de94796a5e736d4029efb0ee900c12e2d54c993ad1a1e07"
 
 [[package]]
 name = "ena"
diff --git a/Cargo.toml b/Cargo.toml
index 3ebeb810269..dd678a76b84 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -91,6 +91,7 @@ lsp-server = { version = "0.7.4" }
 
 # non-local crates
 anyhow = "1.0.75"
+either = "1.9.0"
 itertools = "0.12.0"
 smallvec = { version = "1.10.0", features = [
   "const_new",
diff --git a/crates/hir-def/Cargo.toml b/crates/hir-def/Cargo.toml
index daed5d635d9..f01db7bf833 100644
--- a/crates/hir-def/Cargo.toml
+++ b/crates/hir-def/Cargo.toml
@@ -18,7 +18,7 @@ cov-mark = "2.0.0-pre.1"
 # We need to freeze the version of the crate, as the raw-api feature is considered unstable
 dashmap = { version = "=5.4.0", features = ["raw-api"] }
 drop_bomb = "0.1.5"
-either = "1.7.0"
+either.workspace = true
 fst = { version = "0.4.7", default-features = false }
 indexmap = "2.0.0"
 itertools.workspace = true
diff --git a/crates/hir-expand/Cargo.toml b/crates/hir-expand/Cargo.toml
index 12cb6503c66..361bbec4318 100644
--- a/crates/hir-expand/Cargo.toml
+++ b/crates/hir-expand/Cargo.toml
@@ -14,7 +14,7 @@ doctest = false
 [dependencies]
 cov-mark = "2.0.0-pre.1"
 tracing.workspace = true
-either = "1.7.0"
+either.workspace = true
 rustc-hash = "1.1.0"
 la-arena.workspace = true
 itertools.workspace = true
diff --git a/crates/hir-ty/Cargo.toml b/crates/hir-ty/Cargo.toml
index 2b65563add4..ca626e671ab 100644
--- a/crates/hir-ty/Cargo.toml
+++ b/crates/hir-ty/Cargo.toml
@@ -18,7 +18,7 @@ arrayvec = "0.7.2"
 bitflags = "2.1.0"
 smallvec.workspace = true
 ena = "0.14.0"
-either = "1.7.0"
+either.workspace = true
 oorandom = "11.1.3"
 tracing.workspace = true
 rustc-hash = "1.1.0"
diff --git a/crates/hir/Cargo.toml b/crates/hir/Cargo.toml
index 2df9be88f03..4c1dfbc294e 100644
--- a/crates/hir/Cargo.toml
+++ b/crates/hir/Cargo.toml
@@ -13,7 +13,7 @@ doctest = false
 
 [dependencies]
 rustc-hash = "1.1.0"
-either = "1.7.0"
+either.workspace = true
 arrayvec = "0.7.2"
 itertools.workspace = true
 smallvec.workspace = true
diff --git a/crates/ide-assists/Cargo.toml b/crates/ide-assists/Cargo.toml
index 2496169a6b2..a622ec1a953 100644
--- a/crates/ide-assists/Cargo.toml
+++ b/crates/ide-assists/Cargo.toml
@@ -15,7 +15,7 @@ doctest = false
 cov-mark = "2.0.0-pre.1"
 
 itertools.workspace = true
-either = "1.7.0"
+either.workspace = true
 smallvec.workspace = true
 
 # local deps
diff --git a/crates/ide-db/Cargo.toml b/crates/ide-db/Cargo.toml
index f4057b33e65..a9873004a1d 100644
--- a/crates/ide-db/Cargo.toml
+++ b/crates/ide-db/Cargo.toml
@@ -18,7 +18,7 @@ rayon = "1.6.1"
 fst = { version = "0.4.7", default-features = false }
 rustc-hash = "1.1.0"
 once_cell = "1.17.0"
-either = "1.7.0"
+either.workspace = true
 itertools.workspace = true
 arrayvec = "0.7.2"
 indexmap = "2.0.0"
diff --git a/crates/ide-diagnostics/Cargo.toml b/crates/ide-diagnostics/Cargo.toml
index 1e455dcfd65..ac7a41fcfe2 100644
--- a/crates/ide-diagnostics/Cargo.toml
+++ b/crates/ide-diagnostics/Cargo.toml
@@ -13,7 +13,7 @@ doctest = false
 
 [dependencies]
 cov-mark = "2.0.0-pre.1"
-either = "1.7.0"
+either.workspace = true
 itertools.workspace = true
 serde_json = "1.0.86"
 once_cell = "1.17.0"
diff --git a/crates/ide/Cargo.toml b/crates/ide/Cargo.toml
index f4d834d2ccd..d5c3439f956 100644
--- a/crates/ide/Cargo.toml
+++ b/crates/ide/Cargo.toml
@@ -14,7 +14,7 @@ doctest = false
 [dependencies]
 cov-mark = "2.0.0-pre.1"
 crossbeam-channel = "0.5.5"
-either = "1.7.0"
+either.workspace = true
 itertools.workspace = true
 tracing.workspace = true
 oorandom = "11.1.3"
diff --git a/crates/syntax/Cargo.toml b/crates/syntax/Cargo.toml
index 671da08737b..e0df0f2c999 100644
--- a/crates/syntax/Cargo.toml
+++ b/crates/syntax/Cargo.toml
@@ -14,7 +14,7 @@ doctest = false
 
 [dependencies]
 cov-mark = "2.0.0-pre.1"
-either = "1.7.0"
+either.workspace = true
 itertools.workspace = true
 rowan = "0.15.11"
 rustc-hash = "1.1.0"