diff --git a/Cargo.toml b/Cargo.toml
index daa4cbfe..4897d154 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -52,7 +52,7 @@ smallvec = "1.8.0"
 rayon = "1.5.2"
 lru = "0.16.3"
 fastdivide = "0.4.0"
-itertools = "0.14.0"
+itertools = "0.15.0"
 measure_time = "0.9.0"
 arc-swap = "1.5.0"
 bon = "3.3.1"
diff --git a/columnar/Cargo.toml b/columnar/Cargo.toml
index a8798587..8da5204c 100644
--- a/columnar/Cargo.toml
+++ b/columnar/Cargo.toml
@@ -9,7 +9,7 @@ description = "column oriented storage for tantivy"
 categories = ["database-implementations", "data-structures", "compression"]
 
 [dependencies]
-itertools = "0.14.0"
+itertools = "0.15.0"
 fastdivide = "0.4.0"
 
 stacker = { version= "0.7", path = "../stacker", package="tantivy-stacker"}
diff --git a/sstable/Cargo.toml b/sstable/Cargo.toml
index b963d846..cd382003 100644
--- a/sstable/Cargo.toml
+++ b/sstable/Cargo.toml
@@ -12,7 +12,7 @@ description = "sstables for tantivy"
 [dependencies]
 common = {version= "0.11", path="../common", package="tantivy-common"}
 futures-util = "0.3.30"
-itertools = "0.14.0"
+itertools = "0.15.0"
 tantivy-bitpacker = { version= "0.10", path="../bitpacker" }
 tantivy-fst = "0.5"
 # experimental gives us access to Decompressor::upper_bound