diff --git a/ipfs-overlay-tests.ipkg b/ipfs-overlay-tests.ipkg
index c2b966b..a8c3086 100644
--- a/ipfs-overlay-tests.ipkg
+++ b/ipfs-overlay-tests.ipkg
@@ -1,4 +1,4 @@
--- SPDX-License-Identifier: PMPL-1.0-or-later
+-- SPDX-License-Identifier: MPL-2.0
 -- ipfs-overlay Idris2 test suite. Estate port 7/11 — both TS test files
 -- ported (config_structure + config_contracts, content-validation pattern).
 
diff --git a/tests/idris2/ConfigContractsTest.idr b/tests/idris2/ConfigContractsTest.idr
index 559fd1e..4ac8da4 100644
--- a/tests/idris2/ConfigContractsTest.idr
+++ b/tests/idris2/ConfigContractsTest.idr
@@ -1,4 +1,4 @@
--- SPDX-License-Identifier: PMPL-1.0-or-later
+-- SPDX-License-Identifier: MPL-2.0
 -- Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 --
 -- Port of tests/contract/config_contracts_test.ts to Idris2, estate-rollout port 7/11.
@@ -51,7 +51,7 @@ allSuites =
         ]
 
   , test "Contract: INVARIANT 3 - All Nickel files must have SPDX headers" $ do
-      let spdx = "SPDX-License-Identifier: PMPL-1.0-or-later"
+      let spdx = "SPDX-License-Identifier: MPL-2.0"
       a <- readFileToString "configs/bootstrap.ncl"
       b <- readFileToString "configs/ipfs-config.ncl"
       c <- readFileToString "configs/swarm.ncl"
@@ -112,7 +112,7 @@ allSuites =
         ]
 
   , test "Contract: INVARIANT 9 - All scripts have SPDX headers" $ do
-      let spdx = "SPDX-License-Identifier: PMPL-1.0-or-later"
+      let spdx = "SPDX-License-Identifier: MPL-2.0"
       a <- readFileToString "scripts/init-node.sh"
       b <- readFileToString "scripts/health-check.sh"
       c <- readFileToString "scripts/generate-swarm-key.sh"
diff --git a/tests/idris2/ConfigStructureTest.idr b/tests/idris2/ConfigStructureTest.idr
index d211944..c5ab54f 100644
--- a/tests/idris2/ConfigStructureTest.idr
+++ b/tests/idris2/ConfigStructureTest.idr
@@ -1,4 +1,4 @@
--- SPDX-License-Identifier: PMPL-1.0-or-later
+-- SPDX-License-Identifier: MPL-2.0
 -- Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 --
 -- Port of tests/unit/config_structure_test.ts to Idris2, estate-rollout port 7/11.
@@ -38,7 +38,7 @@ allSuites =
       a <- readFileToString "configs/bootstrap.ncl"
       b <- readFileToString "configs/ipfs-config.ncl"
       c <- readFileToString "configs/swarm.ncl"
-      let spdx = "SPDX-License-Identifier: PMPL-1.0-or-later"
+      let spdx = "SPDX-License-Identifier: MPL-2.0"
       allPass
         [ assertTrue "bootstrap.ncl SPDX" (isInfixOf spdx a)
         , assertTrue "ipfs-config.ncl SPDX" (isInfixOf spdx b)
diff --git a/tests/idris2/Test/Spec.idr b/tests/idris2/Test/Spec.idr
index ff6a493..c7fe418 100644
--- a/tests/idris2/Test/Spec.idr
+++ b/tests/idris2/Test/Spec.idr
@@ -1,4 +1,4 @@
--- SPDX-License-Identifier: PMPL-1.0-or-later
+-- SPDX-License-Identifier: MPL-2.0
 -- Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 --
 ||| Minimal Idris2 test harness for the Gossamer ABI test suite.