diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0e9e310..84c3617 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,13 +20,6 @@ jobs:
           - 1.75.0
           - 1.76.0
           - 1.77.2
-          - 1.78.0
-          - 1.79.0
-          - 1.80.0
-          - 1.81.0
-          - 1.82.0
-          - 1.83.0
-          - 1.84.0
           - stable
           - beta
           - nightly
diff --git a/Cargo.toml b/Cargo.toml
index 1c1c3db..36b3372 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,7 +22,7 @@ benchmark = ["criterion"]
 
 [dependencies]
 base64ct = { version = "1.6.0", default-features = false, features = ["std"] }
-getrandom = { version = "0.3.0", default-features = false }
+getrandom = { version = "0.2.12", default-features = false }
 thiserror = { version = "2.0.3", default-features = false }
 
 # chacha feature:
diff --git a/src/ikm.rs b/src/ikm.rs
index 8eec65c..99deb14 100644
--- a/src/ikm.rs
+++ b/src/ikm.rs
@@ -243,7 +243,7 @@ impl InputKeyMaterialList {
 	) -> Result<IkmId> {
 		let ikm_len = scheme.get_ikm_size();
 		let mut content: Vec<u8> = vec![0; ikm_len];
-		getrandom::fill(content.as_mut_slice())?;
+		getrandom::getrandom(content.as_mut_slice())?;
 		self.id_counter += 1;
 		self.ikm_lst.push(InputKeyMaterial {
 			id: self.id_counter,
diff --git a/src/scheme/aes.rs b/src/scheme/aes.rs
index 9a62f96..b224124 100644
--- a/src/scheme/aes.rs
+++ b/src/scheme/aes.rs
@@ -13,7 +13,7 @@ const NONCE_SIZE: usize = 12;
 
 pub(crate) fn aes128gcm_gen_nonce() -> Result<Vec<u8>> {
 	let mut nonce: [u8; NONCE_SIZE] = [0; NONCE_SIZE];
-	getrandom::fill(&mut nonce)?;
+	getrandom::getrandom(&mut nonce)?;
 	Ok(nonce.to_vec())
 }
 
diff --git a/src/scheme/xchacha20poly1305.rs b/src/scheme/xchacha20poly1305.rs
index af132a0..d041eda 100644
--- a/src/scheme/xchacha20poly1305.rs
+++ b/src/scheme/xchacha20poly1305.rs
@@ -9,7 +9,7 @@ const NONCE_SIZE: usize = 24;
 
 pub(crate) fn xchacha20poly1305_gen_nonce() -> Result<Vec<u8>> {
 	let mut nonce: [u8; NONCE_SIZE] = [0; NONCE_SIZE];
-	getrandom::fill(&mut nonce)?;
+	getrandom::getrandom(&mut nonce)?;
 	Ok(nonce.to_vec())
 }