diff --git a/Cargo.lock b/Cargo.lock
index 30daa2294e..4f4d467771 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -10092,7 +10092,6 @@ dependencies = [
  "pallet-election-provider-support-benchmarking",
  "pallet-fast-unstake",
  "pallet-grandpa",
- "pallet-im-online",
  "pallet-indices",
  "pallet-message-queue",
  "pallet-mmr",
@@ -14417,7 +14416,6 @@ dependencies = [
  "pallet-election-provider-support-benchmarking",
  "pallet-fast-unstake",
  "pallet-grandpa",
- "pallet-im-online",
  "pallet-indices",
  "pallet-message-queue",
  "pallet-mmr",
diff --git a/Cargo.toml b/Cargo.toml
index 3c70df0ac5..13199f41e3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -124,7 +124,6 @@ pallet-fast-unstake = { version = "35.0.0", default-features = false }
 pallet-glutton = { version = "22.0.0", default-features = false }
 pallet-grandpa = { version = "36.0.0", default-features = false }
 pallet-identity = { version = "36.0.0", default-features = false }
-pallet-im-online = { version = "35.0.0", default-features = false }
 pallet-indices = { version = "36.0.0", default-features = false }
 pallet-insecure-randomness-collective-flip = { version = "24.0.0", default-features = false }
 pallet-membership = { version = "36.0.0", default-features = false }
diff --git a/relay/kusama/Cargo.toml b/relay/kusama/Cargo.toml
index bb35b40543..83a5bf194b 100644
--- a/relay/kusama/Cargo.toml
+++ b/relay/kusama/Cargo.toml
@@ -57,7 +57,6 @@ frame-executive = { workspace = true }
 frame-metadata-hash-extension = { workspace = true }
 pallet-grandpa = { workspace = true }
 pallet-nis = { workspace = true }
-pallet-im-online = { workspace = true }
 pallet-indices = { workspace = true }
 pallet-message-queue = { workspace = true }
 pallet-mmr = { workspace = true }
@@ -156,7 +155,6 @@ std = [
 	"pallet-election-provider-support-benchmarking?/std",
 	"pallet-fast-unstake/std",
 	"pallet-grandpa/std",
-	"pallet-im-online/std",
 	"pallet-indices/std",
 	"pallet-message-queue/std",
 	"pallet-mmr/std",
@@ -236,7 +234,6 @@ runtime-benchmarks = [
 	"pallet-election-provider-support-benchmarking/runtime-benchmarks",
 	"pallet-fast-unstake/runtime-benchmarks",
 	"pallet-grandpa/runtime-benchmarks",
-	"pallet-im-online/runtime-benchmarks",
 	"pallet-indices/runtime-benchmarks",
 	"pallet-message-queue/runtime-benchmarks",
 	"pallet-mmr/runtime-benchmarks",
@@ -293,7 +290,6 @@ try-runtime = [
 	"pallet-election-provider-multi-phase/try-runtime",
 	"pallet-fast-unstake/try-runtime",
 	"pallet-grandpa/try-runtime",
-	"pallet-im-online/try-runtime",
 	"pallet-indices/try-runtime",
 	"pallet-message-queue/try-runtime",
 	"pallet-mmr/try-runtime",
diff --git a/relay/kusama/src/lib.rs b/relay/kusama/src/lib.rs
index 586ccfd7d7..13d0bfbbda 100644
--- a/relay/kusama/src/lib.rs
+++ b/relay/kusama/src/lib.rs
@@ -2144,12 +2144,6 @@ sp_api::impl_runtime_apis! {
 
 	impl sp_offchain::OffchainWorkerApi<Block> for Runtime {
 		fn offchain_worker(header: &<Block as BlockT>::Header) {
-			use sp_runtime::{traits::Header, DigestItem};
-
-			if header.digest().logs().iter().any(|di| di == &DigestItem::RuntimeEnvironmentUpdated) {
-				pallet_im_online::migration::clear_offchain_storage(Session::validators().len() as u32);
-			}
-
 			Executive::offchain_worker(header)
 		}
 	}
diff --git a/relay/polkadot/Cargo.toml b/relay/polkadot/Cargo.toml
index 4cad587ce0..89d0c4879e 100644
--- a/relay/polkadot/Cargo.toml
+++ b/relay/polkadot/Cargo.toml
@@ -54,7 +54,6 @@ pallet-fast-unstake = { workspace = true }
 frame-executive = { workspace = true }
 frame-metadata-hash-extension = { workspace = true }
 pallet-grandpa = { workspace = true }
-pallet-im-online = { workspace = true }
 pallet-indices = { workspace = true }
 pallet-message-queue = { workspace = true }
 pallet-mmr = { workspace = true }
@@ -159,7 +158,6 @@ std = [
 	"pallet-election-provider-support-benchmarking?/std",
 	"pallet-fast-unstake/std",
 	"pallet-grandpa/std",
-	"pallet-im-online/std",
 	"pallet-indices/std",
 	"pallet-message-queue/std",
 	"pallet-mmr/std",
@@ -240,7 +238,6 @@ runtime-benchmarks = [
 	"pallet-election-provider-support-benchmarking/runtime-benchmarks",
 	"pallet-fast-unstake/runtime-benchmarks",
 	"pallet-grandpa/runtime-benchmarks",
-	"pallet-im-online/runtime-benchmarks",
 	"pallet-indices/runtime-benchmarks",
 	"pallet-message-queue/runtime-benchmarks",
 	"pallet-mmr/runtime-benchmarks",
@@ -296,7 +293,6 @@ try-runtime = [
 	"pallet-election-provider-multi-phase/try-runtime",
 	"pallet-fast-unstake/try-runtime",
 	"pallet-grandpa/try-runtime",
-	"pallet-im-online/try-runtime",
 	"pallet-indices/try-runtime",
 	"pallet-message-queue/try-runtime",
 	"pallet-mmr/try-runtime",
diff --git a/relay/polkadot/src/lib.rs b/relay/polkadot/src/lib.rs
index 2cbd6adf81..7431585f0d 100644
--- a/relay/polkadot/src/lib.rs
+++ b/relay/polkadot/src/lib.rs
@@ -1630,7 +1630,7 @@ construct_runtime! {
 
 		// Consensus support.
 		// Authorship must be before session in order to note author in the correct session and era
-		// for im-online and staking.
+		// for staking.
 		Authorship: pallet_authorship = 6,
 		Staking: pallet_staking = 7,
 		Offences: pallet_offences = 8,
@@ -2429,12 +2429,6 @@ sp_api::impl_runtime_apis! {
 
 	impl sp_offchain::OffchainWorkerApi<Block> for Runtime {
 		fn offchain_worker(header: &<Block as BlockT>::Header) {
-			use sp_runtime::{traits::Header, DigestItem};
-
-			if header.digest().logs().iter().any(|di| di == &DigestItem::RuntimeEnvironmentUpdated) {
-				pallet_im_online::migration::clear_offchain_storage(Session::validators().len() as u32);
-			}
-
 			Executive::offchain_worker(header)
 		}
 	}