diff --git a/Cargo.lock b/Cargo.lock
index 286fb4ce275..10617fc654a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -226,13 +226,19 @@ version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
+[[package]]
+name = "base64"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0ea22880d78093b0cbe17c89f64a7d457941e65759157ec6cb31a31d652b05e5"
+
 [[package]]
 name = "base64-url"
 version = "1.4.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "67a99c239d0c7e77c85dddfa9cebce48704b3c49550fcd3b84dd637e4484899f"
 dependencies = [
- "base64",
+ "base64 0.13.1",
 ]
 
 [[package]]
@@ -358,7 +364,7 @@ version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "699194c00f3a2effd3358d47f880646818e3d483190b17ebcdf598c654fb77e9"
 dependencies = [
- "base64",
+ "base64 0.13.1",
  "bollard-stubs",
  "bytes",
  "chrono",
@@ -1624,7 +1630,7 @@ name = "graph-chain-ethereum"
 version = "0.28.2"
 dependencies = [
  "anyhow",
- "base64",
+ "base64 0.20.0",
  "dirs-next",
  "envconfig",
  "futures 0.1.31",
@@ -1649,7 +1655,7 @@ dependencies = [
 name = "graph-chain-near"
 version = "0.28.2"
 dependencies = [
- "base64",
+ "base64 0.20.0",
  "diesel",
  "graph",
  "graph-runtime-derive",
@@ -1666,7 +1672,7 @@ version = "0.28.2"
 dependencies = [
  "anyhow",
  "async-stream",
- "base64",
+ "base64 0.20.0",
  "dirs-next",
  "envconfig",
  "futures 0.1.31",
@@ -2044,7 +2050,7 @@ version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a4c4eb0471fcb85846d8b0690695ef354f9afb11cb03cac2e1d7c9253351afb0"
 dependencies = [
- "base64",
+ "base64 0.13.1",
  "bitflags",
  "bytes",
  "headers-core",
@@ -3229,7 +3235,7 @@ version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ff3e0f70d32e20923cabf2df02913be7c1842d4c772db8065c00fcfdd1d1bff3"
 dependencies = [
- "base64",
+ "base64 0.13.1",
  "byteorder",
  "bytes",
  "fallible-iterator",
@@ -3658,7 +3664,7 @@ version = "0.11.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "246e9f61b9bb77df069a947682be06e31ac43ea37862e244a69f177694ea6d22"
 dependencies = [
- "base64",
+ "base64 0.13.1",
  "bytes",
  "encoding_rs",
  "futures-core",
@@ -3770,7 +3776,7 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1ee86d63972a7c661d1536fefe8c3c8407321c3df668891286de28abcd087360"
 dependencies = [
- "base64",
+ "base64 0.13.1",
 ]
 
 [[package]]
@@ -3779,7 +3785,7 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e7522c9de787ff061458fe9a829dc790a3f5b22dc571694fc5883f448b94d9a9"
 dependencies = [
- "base64",
+ "base64 0.13.1",
 ]
 
 [[package]]
@@ -4193,7 +4199,7 @@ version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "41d1c5305e39e09653383c2c7244f2f78b3bcae37cf50c64cb4789c9f5096ec2"
 dependencies = [
- "base64",
+ "base64 0.13.1",
  "bytes",
  "futures 0.3.16",
  "httparse",
@@ -4668,7 +4674,7 @@ dependencies = [
  "async-stream",
  "async-trait",
  "axum",
- "base64",
+ "base64 0.13.1",
  "bytes",
  "flate2",
  "futures-core",
@@ -4855,7 +4861,7 @@ version = "0.17.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e27992fd6a8c29ee7eef28fc78349aa244134e10ad447ce3b9f0ac0ed0fa4ce0"
 dependencies = [
- "base64",
+ "base64 0.13.1",
  "byteorder",
  "bytes",
  "http",
@@ -5178,7 +5184,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d14d500d5c3dc5f5c097158feee123d64b3097f0d836a2a27dff9c761c73c843"
 dependencies = [
  "anyhow",
- "base64",
+ "base64 0.13.1",
  "bincode",
  "directories-next",
  "errno",
@@ -5378,7 +5384,7 @@ version = "0.19.0-graph"
 source = "git+https://github.com/graphprotocol/rust-web3?branch=graph-patches-onto-0.18#7f8eb6dfcc13a4186f9b42f91de950646bc4a833"
 dependencies = [
  "arrayvec 0.7.2",
- "base64",
+ "base64 0.13.1",
  "bytes",
  "derive_more",
  "ethabi",
diff --git a/chain/ethereum/Cargo.toml b/chain/ethereum/Cargo.toml
index b06f831ba64..4466cd62ba7 100644
--- a/chain/ethereum/Cargo.toml
+++ b/chain/ethereum/Cargo.toml
@@ -26,7 +26,7 @@ graph-runtime-derive = { path = "../../runtime/derive" }
 
 [dev-dependencies]
 test-store = { path = "../../store/test-store" }
-base64 = "0.13.1"
+base64 = "0.20.0"
 
 [build-dependencies]
 tonic-build = { version = "0.7.2", features = ["prost"] }
diff --git a/chain/near/Cargo.toml b/chain/near/Cargo.toml
index bb38ef75489..470231cf93c 100644
--- a/chain/near/Cargo.toml
+++ b/chain/near/Cargo.toml
@@ -7,7 +7,7 @@ edition.workspace = true
 tonic-build = { version = "0.7.1", features = ["prost"] }
 
 [dependencies]
-base64 = "0.13"
+base64 = "0.20"
 graph = { path = "../../graph" }
 prost = "0.10.1"
 prost-types = "0.10.1"
diff --git a/chain/substreams/Cargo.toml b/chain/substreams/Cargo.toml
index 87141c523e7..e2eeb3c662e 100644
--- a/chain/substreams/Cargo.toml
+++ b/chain/substreams/Cargo.toml
@@ -23,7 +23,7 @@ anyhow = "1.0"
 tiny-keccak = "1.5.0"
 hex = "0.4.3"
 semver = "1.0.12"
-base64 = "0.13.1"
+base64 = "0.20.0"
 
 itertools = "0.10.5"