diff --git a/.changelog/unreleased/bug-fixes/1084-fix-potential-base64-resolution-issue.md b/.changelog/unreleased/bug-fixes/1084-fix-potential-base64-resolution-issue.md
new file mode 100644
index 000000000..17ab5aca2
--- /dev/null
+++ b/.changelog/unreleased/bug-fixes/1084-fix-potential-base64-resolution-issue.md
@@ -0,0 +1,3 @@
+- [ibc] Resolve potential `base64` dependency resolution issue by bringing it to
+  the workspace `Cargo.toml`
+  ([\#1084](https://github.com/cosmos/ibc-rs/issues/1084))
diff --git a/Cargo.toml b/Cargo.toml
index f645467b6..c4590de59 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -50,6 +50,7 @@ authors      = ["Informal Systems <hello@informal.systems>"]
 
 [workspace.dependencies]
 # external dependencies
+base64              = { version = "0.21", default-features = false }
 borsh               = { version = "0.10", default-features = false }
 displaydoc          = { version = "0.2", default-features = false }
 derive_more         = { version = "0.99.17", default-features = false, features = ["from", "into", "display", "try_into"] }
diff --git a/ci/cw-check/Cargo.lock b/ci/cw-check/Cargo.lock
index b37e44bb4..98a8201e7 100644
--- a/ci/cw-check/Cargo.lock
+++ b/ci/cw-check/Cargo.lock
@@ -81,9 +81,9 @@ dependencies = [
 
 [[package]]
 name = "bnum"
-version = "0.8.1"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab9008b6bb9fc80b5277f2fe481c09e828743d9151203e804583eb4c9e15b31d"
+checksum = "56953345e39537a3e18bdaeba4cb0c58a78c1f61f361dc0fa7c5c7340ae87c5f"
 
 [[package]]
 name = "byte-slice-cast"
@@ -120,9 +120,9 @@ checksum = "c2459377285ad874054d797f3ccebf984978aa39129f6eafde5cdc8315b612f8"
 
 [[package]]
 name = "cosmwasm-crypto"
-version = "1.5.1"
+version = "1.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ad24bc9dae9aac5dc124b4560e3f7678729d701f1bf3cb11140703d91f247d31"
+checksum = "9934c79e58d9676edfd592557dee765d2a6ef54c09d5aa2edb06156b00148966"
 dependencies = [
  "digest 0.10.7",
  "ecdsa",
@@ -134,18 +134,18 @@ dependencies = [
 
 [[package]]
 name = "cosmwasm-derive"
-version = "1.5.1"
+version = "1.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca65635b768406eabdd28ba015cc3f2f863ca5a2677a7dc4c237b8ee1298efb3"
+checksum = "bc5e72e330bd3bdab11c52b5ecbdeb6a8697a004c57964caeb5d876f0b088b3c"
 dependencies = [
  "syn 1.0.109",
 ]
 
 [[package]]
 name = "cosmwasm-schema"
-version = "1.5.1"
+version = "1.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77e2a6ce6dbcad572495fd9d9c1072793fe682aebfcc09752c3b0de3fa1814d7"
+checksum = "ac3e3a2136e2a60e8b6582f5dffca5d1a683ed77bf38537d330bc1dfccd69010"
 dependencies = [
  "cosmwasm-schema-derive",
  "schemars",
@@ -156,9 +156,9 @@ dependencies = [
 
 [[package]]
 name = "cosmwasm-schema-derive"
-version = "1.5.1"
+version = "1.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "904408dc6d73fd1d535c764a55370803cccf6b9be5af7423c4db8967058673f0"
+checksum = "f5d803bea6bd9ed61bd1ee0b4a2eb09ee20dbb539cc6e0b8795614d20952ebb1"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -167,9 +167,9 @@ dependencies = [
 
 [[package]]
 name = "cosmwasm-std"
-version = "1.5.1"
+version = "1.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ed4564772e5d779235f2d7353e3d66e37793065c3a5155a2978256bf4c5b7d5"
+checksum = "ef8666e572a3a2519010dde88c04d16e9339ae751b56b2bb35081fe3f7d6be74"
 dependencies = [
  "base64 0.21.6",
  "bech32",
@@ -181,7 +181,7 @@ dependencies = [
  "hex",
  "schemars",
  "serde",
- "serde-json-wasm 0.5.1",
+ "serde-json-wasm 0.5.2",
  "sha2 0.10.8",
  "static_assertions",
  "thiserror",
@@ -970,9 +970,9 @@ checksum = "b1a46d1a171d865aa5f83f92695765caa047a9b4cbae2cbf37dbd613a793fd4c"
 
 [[package]]
 name = "k256"
-version = "0.13.3"
+version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "956ff9b67e26e1a6a866cb758f12c6f8746208489e3e4a4b5580802f2f0a587b"
+checksum = "cadb76004ed8e97623117f3df85b17aaa6626ab0b0831e6573f104df16cd1bcc"
 dependencies = [
  "cfg-if",
  "ecdsa",
@@ -1287,9 +1287,9 @@ dependencies = [
 
 [[package]]
 name = "serde-json-wasm"
-version = "0.5.1"
+version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "16a62a1fad1e1828b24acac8f2b468971dade7b8c3c2e672bcadefefb1f8c137"
+checksum = "9e9213a07d53faa0b8dd81e767a54a8188a242fdb9be99ab75ec576a774bfdd7"
 dependencies = [
  "serde",
 ]
diff --git a/ci/cw-check/Cargo.toml b/ci/cw-check/Cargo.toml
index 72b1313f9..5b24d0e3c 100644
--- a/ci/cw-check/Cargo.toml
+++ b/ci/cw-check/Cargo.toml
@@ -9,8 +9,8 @@ crate-type = ["cdylib", "rlib"]
 [dependencies]
 ibc-apps = { path = "../../ibc-apps", default_features = false, features = ["serde", "parity-scale-codec"] }
 ibc-core = { path = "../../ibc-core", features = ["serde", "parity-scale-codec", "schema"] }
-cosmwasm-std = { version = "^1.5.0", default-features = false }
-cosmwasm-schema = { version = "^1.5.0", default-features = false }
+cosmwasm-std = { version = "^1.5.3", default-features = false }
+cosmwasm-schema = { version = "^1.5.3", default-features = false }
 serde_json =  { package = "serde-json-wasm", version = "^1.0.1", default-features = false }
 thiserror = { version = "^1.0", default-features = false }
 
diff --git a/ibc-apps/ics721-nft-transfer/types/Cargo.toml b/ibc-apps/ics721-nft-transfer/types/Cargo.toml
index beda003a3..9deb1a361 100644
--- a/ibc-apps/ics721-nft-transfer/types/Cargo.toml
+++ b/ibc-apps/ics721-nft-transfer/types/Cargo.toml
@@ -20,7 +20,7 @@ all-features = true
 [dependencies]
 # external dependencies
 borsh           = { workspace = true, optional = true }
-base64          = { version = "0.21.6", default-features = false }
+base64          = { workspace = true }
 derive_more     = { workspace = true }
 displaydoc      = { workspace = true }
 http            = "1.0.0"
diff --git a/ibc-clients/ics08-wasm/types/Cargo.toml b/ibc-clients/ics08-wasm/types/Cargo.toml
index b920c4cba..3fbf0cb68 100644
--- a/ibc-clients/ics08-wasm/types/Cargo.toml
+++ b/ibc-clients/ics08-wasm/types/Cargo.toml
@@ -16,7 +16,7 @@ description  = """
 
 [dependencies]
 # external dependencies
-base64          = { version = "0.21", default-features = false, features = ["alloc"] }
+base64          = { workspace = true , features = ["alloc"] }
 displaydoc      = { workspace = true }
 serde           = { workspace = true , optional = true }
 cosmwasm-schema = { version = "1.4.1", default-features = false, optional = true }