diff --git a/node/subsystem-test-helpers/Cargo.toml b/node/subsystem-test-helpers/Cargo.toml
index 81bc19a13031..adb0587370ec 100644
--- a/node/subsystem-test-helpers/Cargo.toml
+++ b/node/subsystem-test-helpers/Cargo.toml
@@ -1,6 +1,7 @@
 [package]
 name = "polkadot-node-subsystem-test-helpers"
 description = "Subsystem traits and message definitions"
+publish = false
 version.workspace = true
 authors.workspace = true
 edition.workspace = true
diff --git a/node/test/client/Cargo.toml b/node/test/client/Cargo.toml
index 33c240443d02..aac46bd4b8fc 100644
--- a/node/test/client/Cargo.toml
+++ b/node/test/client/Cargo.toml
@@ -1,5 +1,6 @@
 [package]
 name = "polkadot-test-client"
+publish = false
 version.workspace = true
 authors.workspace = true
 edition.workspace = true
diff --git a/node/test/performance-test/Cargo.toml b/node/test/performance-test/Cargo.toml
index c6d0ce7f7ec9..1bddc6b08702 100644
--- a/node/test/performance-test/Cargo.toml
+++ b/node/test/performance-test/Cargo.toml
@@ -1,5 +1,6 @@
 [package]
 name = "polkadot-performance-test"
+publish = false
 version.workspace = true
 authors.workspace = true
 edition.workspace = true
diff --git a/node/test/service/Cargo.toml b/node/test/service/Cargo.toml
index 08e9e3889b06..8912e19306e0 100644
--- a/node/test/service/Cargo.toml
+++ b/node/test/service/Cargo.toml
@@ -1,5 +1,6 @@
 [package]
 name = "polkadot-test-service"
+publish = false
 version.workspace = true
 authors.workspace = true
 edition.workspace = true
diff --git a/parachain/test-parachains/adder/Cargo.toml b/parachain/test-parachains/adder/Cargo.toml
index 5e1b9a7d174c..d2b2224328a7 100644
--- a/parachain/test-parachains/adder/Cargo.toml
+++ b/parachain/test-parachains/adder/Cargo.toml
@@ -6,6 +6,7 @@ edition.workspace = true
 license.workspace = true
 version.workspace = true
 authors.workspace = true
+publish = false
 
 [dependencies]
 parachain = { package = "polkadot-parachain", path = "../../", default-features = false, features = [ "wasm-api" ] }
diff --git a/parachain/test-parachains/adder/collator/Cargo.toml b/parachain/test-parachains/adder/collator/Cargo.toml
index fec95a5718a1..10433975d032 100644
--- a/parachain/test-parachains/adder/collator/Cargo.toml
+++ b/parachain/test-parachains/adder/collator/Cargo.toml
@@ -1,6 +1,7 @@
 [package]
 name = "test-parachain-adder-collator"
 description = "Collator for the adder test parachain"
+publish = false
 version.workspace = true
 authors.workspace = true
 edition.workspace = true
diff --git a/parachain/test-parachains/halt/Cargo.toml b/parachain/test-parachains/halt/Cargo.toml
index 99076aae6aa3..85ee5d99d891 100644
--- a/parachain/test-parachains/halt/Cargo.toml
+++ b/parachain/test-parachains/halt/Cargo.toml
@@ -2,6 +2,7 @@
 name = "test-parachain-halt"
 description = "Test parachain which executes forever"
 build = "build.rs"
+publish = false
 version.workspace = true
 authors.workspace = true
 edition.workspace = true
diff --git a/parachain/test-parachains/undying/Cargo.toml b/parachain/test-parachains/undying/Cargo.toml
index 43cb1bc37fda..030032e7754d 100644
--- a/parachain/test-parachains/undying/Cargo.toml
+++ b/parachain/test-parachains/undying/Cargo.toml
@@ -2,6 +2,7 @@
 name = "test-parachain-undying"
 description = "Test parachain for zombienet integration tests"
 build = "build.rs"
+publish = false
 version.workspace = true
 authors.workspace = true
 edition.workspace = true
diff --git a/parachain/test-parachains/undying/collator/Cargo.toml b/parachain/test-parachains/undying/collator/Cargo.toml
index 4f1a34f977c8..4eaa03532380 100644
--- a/parachain/test-parachains/undying/collator/Cargo.toml
+++ b/parachain/test-parachains/undying/collator/Cargo.toml
@@ -5,6 +5,7 @@ edition.workspace = true
 license.workspace = true
 version.workspace = true
 authors.workspace = true
+publish = false
 
 [[bin]]
 name = "undying-collator"
diff --git a/primitives/test-helpers/Cargo.toml b/primitives/test-helpers/Cargo.toml
index a1f7f9268b9f..b43bac1e8550 100644
--- a/primitives/test-helpers/Cargo.toml
+++ b/primitives/test-helpers/Cargo.toml
@@ -1,5 +1,6 @@
 [package]
 name = "polkadot-primitives-test-helpers"
+publish = false
 version.workspace = true
 authors.workspace = true
 edition.workspace = true
diff --git a/runtime/test-runtime/Cargo.toml b/runtime/test-runtime/Cargo.toml
index 76bd63d59462..41fbebb39f3a 100644
--- a/runtime/test-runtime/Cargo.toml
+++ b/runtime/test-runtime/Cargo.toml
@@ -1,6 +1,7 @@
 [package]
 name = "polkadot-test-runtime"
 build = "build.rs"
+publish = false
 version.workspace = true
 authors.workspace = true
 edition.workspace = true
diff --git a/runtime/test-runtime/constants/Cargo.toml b/runtime/test-runtime/constants/Cargo.toml
index 9b435da80682..15ab1dbdd4fe 100644
--- a/runtime/test-runtime/constants/Cargo.toml
+++ b/runtime/test-runtime/constants/Cargo.toml
@@ -1,5 +1,6 @@
 [package]
 name = "test-runtime-constants"
+publish = false
 version.workspace = true
 authors.workspace = true
 edition.workspace = true
diff --git a/utils/remote-ext-tests/bags-list/Cargo.toml b/utils/remote-ext-tests/bags-list/Cargo.toml
index 772efb1eddd0..c84c95ab0498 100644
--- a/utils/remote-ext-tests/bags-list/Cargo.toml
+++ b/utils/remote-ext-tests/bags-list/Cargo.toml
@@ -1,5 +1,6 @@
 [package]
 name = "remote-ext-tests-bags-list"
+publish = false
 version.workspace = true
 authors.workspace = true
 edition.workspace = true
diff --git a/xcm/xcm-executor/integration-tests/Cargo.toml b/xcm/xcm-executor/integration-tests/Cargo.toml
index d2af1304beb6..18a729e082d2 100644
--- a/xcm/xcm-executor/integration-tests/Cargo.toml
+++ b/xcm/xcm-executor/integration-tests/Cargo.toml
@@ -5,6 +5,7 @@ authors.workspace = true
 edition.workspace = true
 license.workspace = true
 version.workspace = true
+publish = false
 
 [dependencies]
 frame-support = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }