diff --git a/Cargo.lock b/Cargo.lock
index 49db134780..b4ccf6426c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1320,9 +1320,9 @@ dependencies = [
 
 [[package]]
 name = "icu_casemap"
-version = "1.3.0"
+version = "1.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3788cfe71eea4bbddc117bc71209abfd9fe7bc2ccdbcc234310969de8de80cb"
+checksum = "67ce60d91773b45daec1b4d4bfcafae56b6170d197090cbf2f6356c6d2b56b7e"
 dependencies = [
  "databake",
  "displaydoc",
diff --git a/Cargo.toml b/Cargo.toml
index 31b35a1aec..3acf50ac04 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -74,7 +74,7 @@ icu_calendar = { version = "~1.3.1", default-features = false }
 icu_collator = { version = "~1.3.0", default-features = false }
 icu_plurals = { version = "~1.3.0", default-features = false }
 icu_list = { version = "~1.3.0", default-features = false }
-icu_casemap = { version = "~1.3.0", default-features = false }
+icu_casemap = { version = "~1.3.1", default-features = false }
 icu_segmenter = { version = "~1.3.0", default-features = false }
 icu_datagen = { version = "~1.3.0", default-features = false }
 icu_provider_adapters = { version = "~1.3.0", default-features = false }