diff --git a/Cargo.Bazel.json.lock b/Cargo.Bazel.json.lock
index caa630671c0a..a8126e792b0a 100644
--- a/Cargo.Bazel.json.lock
+++ b/Cargo.Bazel.json.lock
@@ -1,5 +1,5 @@
 {
-  "checksum": "dbadba2b42a800ac952738bf5cbe73467c6a330b18e8c94701019bb1813dcb90",
+  "checksum": "02dd24efe2a88000b51518682fe98076835ae12881f8f6b00350ba1509d5cd34",
   "crates": {
     "abnf 0.12.0": {
       "name": "abnf",
@@ -11474,7 +11474,7 @@
               "target": "canbench_rs"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -11581,7 +11581,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -11668,14 +11668,14 @@
       ],
       "license_file": null
     },
-    "candid 0.10.22": {
+    "candid 0.10.20": {
       "name": "candid",
-      "version": "0.10.22",
+      "version": "0.10.20",
       "package_url": "https://github.com/dfinity/candid",
       "repository": {
         "Http": {
-          "url": "https://static.crates.io/crates/candid/0.10.22/download",
-          "sha256": "3b64a1b8e8c368f8ffd2aaa64c7189d0a84783ba162f64de647cefedb4f12c88"
+          "url": "https://static.crates.io/crates/candid/0.10.20/download",
+          "sha256": "8037a01ec09d6c06883a38bad4f47b8d06158ad360b841e0ae5707c9884dfaf6"
         }
       },
       "targets": [
@@ -11760,7 +11760,7 @@
             }
           ],
           "selects": {
-            "cfg(not(target_family = \"wasm\"))": [
+            "cfg(not(target_arch = \"wasm32\"))": [
               {
                 "id": "stacker 0.1.15",
                 "target": "stacker"
@@ -11772,7 +11772,7 @@
         "proc_macro_deps": {
           "common": [
             {
-              "id": "candid_derive 0.10.22",
+              "id": "candid_derive 0.10.20",
               "target": "candid_derive"
             },
             {
@@ -11807,7 +11807,7 @@
             ]
           }
         },
-        "version": "0.10.22"
+        "version": "0.10.20"
       },
       "license": "Apache-2.0",
       "license_ids": [
@@ -11815,14 +11815,14 @@
       ],
       "license_file": "LICENSE"
     },
-    "candid_derive 0.10.22": {
+    "candid_derive 0.10.20": {
       "name": "candid_derive",
-      "version": "0.10.22",
+      "version": "0.10.20",
       "package_url": "https://github.com/dfinity/candid",
       "repository": {
         "Http": {
-          "url": "https://static.crates.io/crates/candid_derive/0.10.22/download",
-          "sha256": "8a3ad1d26683b72c7fd16c8b2e3ebacf8785c9532389286c89971c1770ee57ce"
+          "url": "https://static.crates.io/crates/candid_derive/0.10.20/download",
+          "sha256": "fb45f4d5eff3805598ee633dd80f8afb306c023249d34b5b7dfdc2080ea1df2e"
         }
       },
       "targets": [
@@ -11866,7 +11866,7 @@
           "selects": {}
         },
         "edition": "2021",
-        "version": "0.10.22"
+        "version": "0.10.20"
       },
       "license": "Apache-2.0",
       "license_ids": [
@@ -11922,7 +11922,7 @@
               "target": "anyhow"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -12031,7 +12031,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -20773,7 +20773,7 @@
               "target": "bytes"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -21372,7 +21372,7 @@
               "target": "canbench_rs"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -26526,7 +26526,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -26602,7 +26602,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -34608,7 +34608,7 @@
               "target": "cached"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -34836,7 +34836,7 @@
               "target": "cached"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -35076,7 +35076,7 @@
               "target": "bytes"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -35408,7 +35408,7 @@
               "target": "axum"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -35570,7 +35570,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -35676,7 +35676,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -35750,7 +35750,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -35837,7 +35837,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -35900,7 +35900,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -36075,7 +36075,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -36234,7 +36234,7 @@
               "target": "cached"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -36458,7 +36458,7 @@
               "target": "base64"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -36588,7 +36588,7 @@
               "target": "axum"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -36722,7 +36722,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -36796,7 +36796,7 @@
               "target": "arc_swap"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -36886,7 +36886,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -37109,7 +37109,7 @@
               "target": "bytes"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -37351,7 +37351,7 @@
               "target": "base64"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -37433,7 +37433,7 @@
               "target": "bytes"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -37583,7 +37583,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -37638,7 +37638,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -37693,7 +37693,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -37841,7 +37841,7 @@
               "target": "base64"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -38135,7 +38135,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -38194,7 +38194,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -38282,7 +38282,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -38376,7 +38376,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -38480,7 +38480,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -38741,7 +38741,7 @@
               "target": "anyhow"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -38894,7 +38894,7 @@
               "target": "anyhow"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -38969,7 +38969,7 @@
         "deps": {
           "common": [
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -39234,7 +39234,7 @@
               "target": "anyhow"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -39305,7 +39305,7 @@
               "target": "anyhow"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -58185,7 +58185,7 @@
               "target": "base64"
             },
             {
-              "id": "candid 0.10.22",
+              "id": "candid 0.10.20",
               "target": "candid"
             },
             {
@@ -98514,7 +98514,7 @@
     "cached 0.49.2",
     "canbench 0.4.0",
     "canbench-rs 0.4.0",
-    "candid 0.10.22",
+    "candid 0.10.20",
     "candid_parser 0.1.4",
     "cargo_metadata 0.14.2",
     "cc 1.2.48",
diff --git a/Cargo.Bazel.toml.lock b/Cargo.Bazel.toml.lock
index d985271f4ab3..3ab0aa755a49 100644
--- a/Cargo.Bazel.toml.lock
+++ b/Cargo.Bazel.toml.lock
@@ -1991,9 +1991,9 @@ dependencies = [
 
 [[package]]
 name = "candid"
-version = "0.10.22"
+version = "0.10.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b64a1b8e8c368f8ffd2aaa64c7189d0a84783ba162f64de647cefedb4f12c88"
+checksum = "8037a01ec09d6c06883a38bad4f47b8d06158ad360b841e0ae5707c9884dfaf6"
 dependencies = [
  "anyhow",
  "binread",
@@ -2014,9 +2014,9 @@ dependencies = [
 
 [[package]]
 name = "candid_derive"
-version = "0.10.22"
+version = "0.10.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a3ad1d26683b72c7fd16c8b2e3ebacf8785c9532389286c89971c1770ee57ce"
+checksum = "fb45f4d5eff3805598ee633dd80f8afb306c023249d34b5b7dfdc2080ea1df2e"
 dependencies = [
  "lazy_static",
  "proc-macro2",
diff --git a/Cargo.lock b/Cargo.lock
index 525bbae67471..6f714216e0b1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1935,9 +1935,9 @@ dependencies = [
 
 [[package]]
 name = "candid"
-version = "0.10.22"
+version = "0.10.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b64a1b8e8c368f8ffd2aaa64c7189d0a84783ba162f64de647cefedb4f12c88"
+checksum = "8037a01ec09d6c06883a38bad4f47b8d06158ad360b841e0ae5707c9884dfaf6"
 dependencies = [
  "anyhow",
  "binread",
@@ -1967,9 +1967,9 @@ dependencies = [
 
 [[package]]
 name = "candid_derive"
-version = "0.10.22"
+version = "0.10.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a3ad1d26683b72c7fd16c8b2e3ebacf8785c9532389286c89971c1770ee57ce"
+checksum = "fb45f4d5eff3805598ee633dd80f8afb306c023249d34b5b7dfdc2080ea1df2e"
 dependencies = [
  "lazy_static",
  "proc-macro2",
diff --git a/Cargo.toml b/Cargo.toml
index 14ad3b2b5415..466d5613955e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -611,7 +611,7 @@ build-info = { git = "https://github.com/dfinity-lab/build-info", rev = "701a696
 build-info-build = { git = "https://github.com/dfinity-lab/build-info", rev = "701a696844fba5c87df162fbbc1ccef96f27c9d7", default-features = false }
 bytes = "1.9.0"
 canbench-rs = "0.4.0"
-candid = { version = "0.10.22" }
+candid = { version = "0.10.20" }
 candid_parser = { version = "0.1.2" }
 chrono = { version = "0.4.42", default-features = false, features = [
     "alloc",
diff --git a/bazel/rust.MODULE.bazel b/bazel/rust.MODULE.bazel
index 13941104c807..a3fec11841e5 100644
--- a/bazel/rust.MODULE.bazel
+++ b/bazel/rust.MODULE.bazel
@@ -246,7 +246,7 @@ crate.spec(
 )
 crate.spec(
     package = "candid",
-    version = "^0.10.22",
+    version = "^0.10.20",
 )
 crate.spec(
     package = "cargo_metadata",
diff --git a/rs/ledger_suite/icrc1/ledger/canbench_results/canbench_u256.yml b/rs/ledger_suite/icrc1/ledger/canbench_results/canbench_u256.yml
index 94b37f74f8ca..b41d106916f7 100644
--- a/rs/ledger_suite/icrc1/ledger/canbench_results/canbench_u256.yml
+++ b/rs/ledger_suite/icrc1/ledger/canbench_results/canbench_u256.yml
@@ -2,70 +2,70 @@ benches:
   bench_icrc1_transfers:
     total:
       calls: 1
-      instructions: 53880685942
-      heap_increase: 262
+      instructions: 54416296904
+      heap_increase: 264
       stable_memory_increase: 256
     scopes:
       icrc103_get_allowances:
         calls: 1
-        instructions: 6558575
+        instructions: 6447843
         heap_increase: 0
         stable_memory_increase: 0
       icrc1_transfer:
         calls: 1
-        instructions: 12838964801
-        heap_increase: 31
+        instructions: 12925814586
+        heap_increase: 32
         stable_memory_increase: 0
       icrc2_approve:
         calls: 1
-        instructions: 19151075183
-        heap_increase: 28
+        instructions: 19344327170
+        heap_increase: 29
         stable_memory_increase: 128
       icrc2_transfer_from:
         calls: 1
-        instructions: 21172821486
+        instructions: 21428424367
         heap_increase: 3
         stable_memory_increase: 0
       icrc3_get_blocks:
         calls: 1
-        instructions: 9111344
+        instructions: 8924170
         heap_increase: 0
         stable_memory_increase: 0
       post_upgrade:
         calls: 1
-        instructions: 357875918
+        instructions: 357456809
         heap_increase: 71
         stable_memory_increase: 0
       pre_upgrade:
         calls: 1
-        instructions: 151083619
+        instructions: 151084681
         heap_increase: 129
         stable_memory_increase: 128
       upgrade:
         calls: 1
-        instructions: 508962182
+        instructions: 508544206
         heap_increase: 200
         stable_memory_increase: 128
   bench_upgrade_baseline:
     total:
       calls: 1
-      instructions: 8695408
+      instructions: 8694844
       heap_increase: 258
       stable_memory_increase: 128
     scopes:
       post_upgrade:
         calls: 1
-        instructions: 8614463
+        instructions: 8613900
         heap_increase: 129
         stable_memory_increase: 0
       pre_upgrade:
         calls: 1
-        instructions: 78040
+        instructions: 78039
         heap_increase: 129
         stable_memory_increase: 128
       upgrade:
         calls: 1
-        instructions: 8694511
+        instructions: 8693947
         heap_increase: 258
         stable_memory_increase: 128
 version: 0.4.0
diff --git a/rs/rust_canisters/canister_creator/test/test.rs b/rs/rust_canisters/canister_creator/test/test.rs
index 5e76c4263adb..700fba129252 100644
--- a/rs/rust_canisters/canister_creator/test/test.rs
+++ b/rs/rust_canisters/canister_creator/test/test.rs
@@ -1,21 +1,16 @@
 use canister_test::*;
 use ic_state_machine_tests::StateMachine;
 
-// 1. This constant has been obtained empirically by running the tests.
+// This constant has been obtained empirically by running the tests.
 // The old value of the const was 1_820_000.
-//
-// 2. Since, we updated the default stack size for Wasm from 1MiB to 3MiB
+// Since, we updated the default stack size for Wasm from 1MiB to 3MiB
 // The new memory usage is 1_820_000 - 1_048_576 + 3_145_728 = 3_991_081
-//
-// 3. After increasing the size of a canister history entry by 32B,
+// After increasing the size of a canister history entry by 32B,
 // and having a total of 1_001 canister creation entries and
 // 1 canister code deployment entry (for the creator canister),
 // the memory usage grew by extra 1_002 x 32 = 32_064B
 // to 3_991_081 + 32_064 = 4_023_145.
-//
-// 4. Bumping the candid version to v.0.10.22 increased the memory
-// further from 4_023_145 to 4_024_201 which is 1_056 bytes.
-const CANISTER_CREATOR_CANISTER_MEMORY_USAGE_BYTES: u64 = 4_024_201;
+const CANISTER_CREATOR_CANISTER_MEMORY_USAGE_BYTES: u64 = 4_023_145;
 
 const HELLO_WORLD_WAT: &str = r#"
 (module