diff --git a/Cargo.lock b/Cargo.lock
index a9dbb5c483..7bf2a6c00e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4369,7 +4369,7 @@ name = "nym-cli"
 version = "1.1.40"
 dependencies = [
  "anyhow",
- "base64 0.13.1",
+ "base64 0.22.1",
  "bip39",
  "bs58 0.5.1",
  "clap 4.5.16",
@@ -4394,7 +4394,7 @@ name = "nym-cli-commands"
 version = "1.0.0"
 dependencies = [
  "anyhow",
- "base64 0.13.1",
+ "base64 0.22.1",
  "bip39",
  "bs58 0.5.1",
  "cfg-if",
@@ -4485,7 +4485,7 @@ name = "nym-client-core"
 version = "1.1.15"
 dependencies = [
  "async-trait",
- "base64 0.21.7",
+ "base64 0.22.1",
  "bs58 0.5.1",
  "cfg-if",
  "clap 4.5.16",
@@ -5487,7 +5487,7 @@ version = "0.1.0"
 dependencies = [
  "axum 0.7.5",
  "axum-extra",
- "base64 0.21.7",
+ "base64 0.22.1",
  "colored",
  "dashmap",
  "fastrand 2.1.1",
@@ -5520,7 +5520,7 @@ name = "nym-node-requests"
 version = "0.1.0"
 dependencies = [
  "async-trait",
- "base64 0.21.7",
+ "base64 0.22.1",
  "celes",
  "humantime 2.1.0",
  "humantime-serde",
@@ -5690,7 +5690,7 @@ dependencies = [
 name = "nym-serde-helpers"
 version = "0.1.0"
 dependencies = [
- "base64 0.21.7",
+ "base64 0.22.1",
  "bs58 0.5.1",
  "serde",
 ]
@@ -6056,7 +6056,7 @@ dependencies = [
 name = "nym-types"
 version = "1.0.0"
 dependencies = [
- "base64 0.21.7",
+ "base64 0.22.1",
  "cosmrs 0.17.0-pre",
  "cosmwasm-std",
  "eyre",
@@ -6086,7 +6086,7 @@ name = "nym-validator-client"
 version = "0.1.0"
 dependencies = [
  "async-trait",
- "base64 0.13.1",
+ "base64 0.22.1",
  "bip32",
  "bip39",
  "colored",
@@ -6204,7 +6204,7 @@ dependencies = [
 name = "nym-wireguard"
 version = "0.1.0"
 dependencies = [
- "base64 0.21.7",
+ "base64 0.22.1",
  "bincode",
  "chrono",
  "dashmap",
@@ -6226,7 +6226,7 @@ dependencies = [
 name = "nym-wireguard-types"
 version = "0.1.0"
 dependencies = [
- "base64 0.21.7",
+ "base64 0.22.1",
  "hmac",
  "log",
  "nym-config",
diff --git a/Cargo.toml b/Cargo.toml
index 15352251d5..2be451eb47 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -171,7 +171,7 @@ argon2 = "0.5.0"
 async-trait = "0.1.81"
 axum = "0.7.5"
 axum-extra = "0.9.3"
-base64 = "0.21.4"
+base64 = "0.22.1"
 bincode = "1.3.3"
 bip39 = { version = "2.0.0", features = ["zeroize"] }
 
diff --git a/common/client-libs/validator-client/Cargo.toml b/common/client-libs/validator-client/Cargo.toml
index 2bf66895c0..dee9577516 100644
--- a/common/client-libs/validator-client/Cargo.toml
+++ b/common/client-libs/validator-client/Cargo.toml
@@ -9,7 +9,7 @@ license.workspace = true
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-base64 = "0.13"
+base64 = "0.22"
 colored = { workspace = true }
 
 nym-coconut-dkg-common = { path = "../../cosmwasm-smart-contracts/coconut-dkg" }
diff --git a/common/client-libs/validator-client/src/nyxd/cosmwasm_client/helpers.rs b/common/client-libs/validator-client/src/nyxd/cosmwasm_client/helpers.rs
index c437125b16..b60b4982cd 100644
--- a/common/client-libs/validator-client/src/nyxd/cosmwasm_client/helpers.rs
+++ b/common/client-libs/validator-client/src/nyxd/cosmwasm_client/helpers.rs
@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0
 
 use crate::nyxd::error::NyxdError;
+use base64::Engine;
 use cosmrs::abci::TxMsgData;
 use cosmrs::cosmwasm::MsgExecuteContractResponse;
 use cosmrs::proto::cosmos::base::query::v1beta1::{PageRequest, PageResponse};
@@ -16,7 +17,7 @@ pub fn parse_msg_responses(data: Bytes) -> Vec<MsgResponse> {
     // it seems that currently, on wasmd 0.43 + tendermint-rs 0.37 + cosmrs 0.17.0-pre
     // the data is left in undecoded base64 form, but I'd imagine this might change so if the decoding fails,
     // use the bytes directly instead
-    let data = if let Ok(decoded) = base64::decode(&data) {
+    let data = if let Ok(decoded) = base64::prelude::BASE64_STANDARD.decode(&data) {
         decoded
     } else {
         error!("failed to base64-decode the 'data' field of the TxResponse - has the chain been upgraded and introduced some breaking changes?");
diff --git a/common/client-libs/validator-client/src/rpc/reqwest.rs b/common/client-libs/validator-client/src/rpc/reqwest.rs
index 973fb63376..e20764d162 100644
--- a/common/client-libs/validator-client/src/rpc/reqwest.rs
+++ b/common/client-libs/validator-client/src/rpc/reqwest.rs
@@ -3,6 +3,7 @@
 
 use crate::rpc::TendermintRpcClient;
 use async_trait::async_trait;
+use base64::Engine;
 use cosmrs::tendermint::{block::Height, evidence::Evidence, Hash};
 use reqwest::header::HeaderMap;
 use reqwest::{header, RequestBuilder};
@@ -13,7 +14,6 @@ use tendermint_rpc::{
     query::Query,
     Error, Order, Response, SimpleRequest,
 };
-
 use url::Url;
 
 // copied macro from tendermint-rpc crate because that's exactly what we have to do here too
@@ -206,7 +206,7 @@ pub fn extract_authorization(url: &Url) -> Option<String> {
 
     let authority = url.authority();
     if let Some((userpass, _)) = authority.split_once('@') {
-        Some(base64::encode(userpass))
+        Some(base64::prelude::BASE64_STANDARD.encode(userpass))
     } else {
         None
     }
diff --git a/common/commands/Cargo.toml b/common/commands/Cargo.toml
index 2045cf0d2a..bab9b86a6e 100644
--- a/common/commands/Cargo.toml
+++ b/common/commands/Cargo.toml
@@ -7,7 +7,7 @@ license.workspace = true
 
 [dependencies]
 anyhow = { workspace = true }
-base64 = "0.13.0"
+base64 = "0.22.1"
 bip39 = { workspace = true }
 bs58 = { workspace = true }
 comfy-table = { workspace = true }
diff --git a/common/commands/src/validator/mixnet/operators/mixnode/keys/decode_mixnode_key.rs b/common/commands/src/validator/mixnet/operators/mixnode/keys/decode_mixnode_key.rs
index 21b026c85e..54d00010af 100644
--- a/common/commands/src/validator/mixnet/operators/mixnode/keys/decode_mixnode_key.rs
+++ b/common/commands/src/validator/mixnet/operators/mixnode/keys/decode_mixnode_key.rs
@@ -1,6 +1,7 @@
 // Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
 // SPDX-License-Identifier: Apache-2.0
 
+use base64::Engine;
 use clap::Parser;
 
 #[derive(Debug, Parser)]
@@ -10,7 +11,9 @@ pub struct Args {
 }
 
 pub fn decode_mixnode_key(args: Args) {
-    let b64_decoded = base64::decode(args.key).expect("failed to decode base64 string");
+    let b64_decoded = base64::prelude::BASE64_STANDARD
+        .decode(args.key)
+        .expect("failed to decode base64 string");
     let b58_encoded = bs58::encode(&b64_decoded).into_string();
 
     println!("{b58_encoded}")
diff --git a/tools/nym-cli/Cargo.toml b/tools/nym-cli/Cargo.toml
index e590e45141..dc8e8990f9 100644
--- a/tools/nym-cli/Cargo.toml
+++ b/tools/nym-cli/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
 license.workspace = true
 
 [dependencies]
-base64 = "0.13.0"
+base64 = "0.22.1"
 bs58 = { workspace = true }
 clap = { workspace = true, features = ["derive"] }
 clap_complete = { workspace = true }