diff --git a/Cargo.lock b/Cargo.lock
index b993264ef..b1296d783 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -906,15 +906,6 @@ version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4b82cf0babdbd58558212896d1a4272303a57bdb245c2bf1147185fb45640e70"
 
-[[package]]
-name = "cmake"
-version = "0.1.50"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a31c789563b815f77f4250caee12365734369f942439b7defd71e18a48197130"
-dependencies = [
- "cc",
-]
-
 [[package]]
 name = "color-eyre"
 version = "0.6.3"
@@ -3261,7 +3252,6 @@ dependencies = [
  "matrix-sdk-common",
  "matrix-sdk-qrcode",
  "matrix-sdk-test",
- "olm-rs",
  "pbkdf2",
  "proptest",
  "rand",
@@ -3871,29 +3861,6 @@ dependencies = [
  "memchr",
 ]
 
-[[package]]
-name = "olm-rs"
-version = "2.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd6c2c7054110ce4d7b4756d7b7fe507fea9413968ad0ef8f1d043d504aec725"
-dependencies = [
- "getrandom",
- "olm-sys",
- "serde",
- "serde_json",
- "zeroize",
-]
-
-[[package]]
-name = "olm-sys"
-version = "1.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2afecf25624989021f9f0f157f7152102fd147b89445d08449739f216002d339"
-dependencies = [
- "cmake",
- "fs_extra",
-]
-
 [[package]]
 name = "once_cell"
 version = "1.19.0"
diff --git a/crates/matrix-sdk-crypto/Cargo.toml b/crates/matrix-sdk-crypto/Cargo.toml
index b776e7a73..13923b1c9 100644
--- a/crates/matrix-sdk-crypto/Cargo.toml
+++ b/crates/matrix-sdk-crypto/Cargo.toml
@@ -81,11 +81,6 @@ futures-executor = { workspace = true }
 http = { workspace = true }
 indoc = "2.0.1"
 matrix-sdk-test = { workspace = true }
-
-# libolm is deprecated. We use it only in tests, to ensure that our
-# implementation of `PkEncryption` is compatible with that in libolm.
-olm-rs = { version = "2.2.0", features = ["serde"] }
-
 proptest = { version = "1.0.0", default-features = false, features = ["std"] }
 similar-asserts = "1.5.0"
 # required for async_test macro