diff --git a/integration-tests/internal/mother/Cargo.toml b/integration-tests/internal/mother/Cargo.toml
index def6672d49..6628fe790c 100755
--- a/integration-tests/internal/mother/Cargo.toml
+++ b/integration-tests/internal/mother/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2021"
 publish = false
 
 [dependencies]
-ink = { path = "../../../crates/ink", default-features = false }
+ink = { path = "../../../crates/ink", default-features = false, features = ["unstable"] }
 
 [dev-dependencies]
 ink_e2e = { path = "../../../crates/e2e" }
diff --git a/integration-tests/internal/sr25519-verification/Cargo.toml b/integration-tests/internal/sr25519-verification/Cargo.toml
index 4ba6f66ecb..4ba0736f3f 100644
--- a/integration-tests/internal/sr25519-verification/Cargo.toml
+++ b/integration-tests/internal/sr25519-verification/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
 publish = false
 
 [dependencies]
-ink = { path = "../../../crates/ink", default-features = false }
+ink = { path = "../../../crates/ink", default-features = false, features = ["unstable"] }
 
 [dev-dependencies]
 ink_e2e = { path = "../../../crates/e2e" }
diff --git a/integration-tests/public/call-runtime/Cargo.toml b/integration-tests/public/call-runtime/Cargo.toml
index b3ab5f99fd..3c409978e8 100644
--- a/integration-tests/public/call-runtime/Cargo.toml
+++ b/integration-tests/public/call-runtime/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
 publish = false
 
 [dependencies]
-ink = { path = "../../../crates/ink", default-features = false }
+ink = { path = "../../../crates/ink", default-features = false, features = ["unstable"] }
 
 # Substrate
 #
diff --git a/integration-tests/public/contract-storage/Cargo.toml b/integration-tests/public/contract-storage/Cargo.toml
index ce3086818c..f53773ed1d 100755
--- a/integration-tests/public/contract-storage/Cargo.toml
+++ b/integration-tests/public/contract-storage/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
 publish = false
 
 [dependencies]
-ink = { path = "../../../crates/ink", default-features = false }
+ink = { path = "../../../crates/ink", default-features = false, features = ["unstable"] }
 
 [dev-dependencies]
 ink_e2e = { path = "../../../crates/e2e" }
diff --git a/integration-tests/public/dns/Cargo.toml b/integration-tests/public/dns/Cargo.toml
index ea3feac862..44cd88fe04 100644
--- a/integration-tests/public/dns/Cargo.toml
+++ b/integration-tests/public/dns/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
 publish = false
 
 [dependencies]
-ink = { path = "../../../crates/ink", default-features = false }
+ink = { path = "../../../crates/ink", default-features = false, features = ["unstable"] }
 
 [lib]
 path = "lib.rs"
diff --git a/integration-tests/public/psp22-extension/Cargo.toml b/integration-tests/public/psp22-extension/Cargo.toml
index 28f0b1b106..08a0126b7a 100755
--- a/integration-tests/public/psp22-extension/Cargo.toml
+++ b/integration-tests/public/psp22-extension/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
 publish = false
 
 [dependencies]
-ink = { path = "../../../crates/ink", default-features = false }
+ink = { path = "../../../crates/ink", default-features = false, features = ["unstable"] }
 
 [lib]
 path = "lib.rs"
diff --git a/integration-tests/public/trait-erc20/Cargo.toml b/integration-tests/public/trait-erc20/Cargo.toml
index c568d31aa9..7cae18a28c 100644
--- a/integration-tests/public/trait-erc20/Cargo.toml
+++ b/integration-tests/public/trait-erc20/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
 publish = false
 
 [dependencies]
-ink = { path = "../../../crates/ink", default-features = false }
+ink = { path = "../../../crates/ink", default-features = false, features = ["unstable"] }
 
 [lib]
 path = "lib.rs"
diff --git a/integration-tests/public/upgradeable-contracts/delegator/Cargo.toml b/integration-tests/public/upgradeable-contracts/delegator/Cargo.toml
index 4f7071341e..fc91ebf36e 100644
--- a/integration-tests/public/upgradeable-contracts/delegator/Cargo.toml
+++ b/integration-tests/public/upgradeable-contracts/delegator/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
 publish = false
 
 [dependencies]
-ink = { path = "../../../../crates/ink", default-features = false }
+ink = { path = "../../../crates/ink", default-features = false, features = ["unstable"] }
 delegatee = { path = "delegatee", default-features = false, features = ["ink-as-dependency"] }
 delegatee2 = { path = "delegatee2", default-features = false, features = ["ink-as-dependency"] }
 
diff --git a/integration-tests/public/upgradeable-contracts/delegator/delegatee/Cargo.toml b/integration-tests/public/upgradeable-contracts/delegator/delegatee/Cargo.toml
index 570ad01cb5..e6c2e597ac 100644
--- a/integration-tests/public/upgradeable-contracts/delegator/delegatee/Cargo.toml
+++ b/integration-tests/public/upgradeable-contracts/delegator/delegatee/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
 publish = false
 
 [dependencies]
-ink = { path = "../../../../../crates/ink", default-features = false }
+ink = { path = "../../../crates/ink", default-features = false, features = ["unstable"] }
 
 [lib]
 path = "lib.rs"
diff --git a/integration-tests/public/upgradeable-contracts/delegator/delegatee2/Cargo.toml b/integration-tests/public/upgradeable-contracts/delegator/delegatee2/Cargo.toml
index 5bfa97aa24..b2e59b1a8f 100644
--- a/integration-tests/public/upgradeable-contracts/delegator/delegatee2/Cargo.toml
+++ b/integration-tests/public/upgradeable-contracts/delegator/delegatee2/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
 publish = false
 
 [dependencies]
-ink = { path = "../../../../../crates/ink", default-features = false }
+ink = { path = "../../../crates/ink", default-features = false, features = ["unstable"] }
 
 [lib]
 path = "lib.rs"
diff --git a/integration-tests/public/upgradeable-contracts/set-code-hash-migration/updated-incrementer/Cargo.toml b/integration-tests/public/upgradeable-contracts/set-code-hash-migration/updated-incrementer/Cargo.toml
index 8a0634b753..0794796b6b 100644
--- a/integration-tests/public/upgradeable-contracts/set-code-hash-migration/updated-incrementer/Cargo.toml
+++ b/integration-tests/public/upgradeable-contracts/set-code-hash-migration/updated-incrementer/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
 publish = false
 
 [dependencies]
-ink = { path = "../../../../../crates/ink", default-features = false }
+ink = { path = "../../../crates/ink", default-features = false, features = ["unstable"] }
 
 [lib]
 path = "lib.rs"
diff --git a/integration-tests/public/wildcard-selector/Cargo.toml b/integration-tests/public/wildcard-selector/Cargo.toml
index cd646c83b6..4570cd7819 100644
--- a/integration-tests/public/wildcard-selector/Cargo.toml
+++ b/integration-tests/public/wildcard-selector/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
 publish = false
 
 [dependencies]
-ink = { path = "../../../crates/ink", default-features = false }
+ink = { path = "../../../crates/ink", default-features = false, features = ["unstable"] }
 
 [dev-dependencies]
 ink_e2e = { path = "../../../crates/e2e" }