diff --git a/e2e/tests/data/ics10_grandpa_cw.wasm b/e2e/tests/data/ics10_grandpa_cw.wasm.gz
similarity index 100%
rename from e2e/tests/data/ics10_grandpa_cw.wasm
rename to e2e/tests/data/ics10_grandpa_cw.wasm.gz
diff --git a/e2e/tests/wasm/grandpa_test.go b/e2e/tests/wasm/grandpa_test.go
index ea429257812..8a8d8bfa6e5 100644
--- a/e2e/tests/wasm/grandpa_test.go
+++ b/e2e/tests/wasm/grandpa_test.go
@@ -86,7 +86,7 @@ func (s *GrandpaTestSuite) TestMsgTransfer_Succeeds_GrandpaContract() {
 
 	cosmosWallet := s.CreateUserOnChainB(ctx, testvalues.StartingTokenAmount)
 
-	file, err := os.Open("../data/ics10_grandpa_cw.wasm")
+	file, err := os.Open("../data/ics10_grandpa_cw.wasm.gz")
 	s.Require().NoError(err)
 
 	checksum := s.PushNewWasmClientProposal(ctx, cosmosChain, cosmosWallet, file)
@@ -234,7 +234,7 @@ func (s *GrandpaTestSuite) TestMsgMigrateContract_Success_GrandpaContract() {
 
 	cosmosWallet := s.CreateUserOnChainB(ctx, testvalues.StartingTokenAmount)
 
-	file, err := os.Open("../data/ics10_grandpa_cw.wasm")
+	file, err := os.Open("../data/ics10_grandpa_cw.wasm.gz")
 	s.Require().NoError(err)
 
 	checksum := s.PushNewWasmClientProposal(ctx, cosmosChain, cosmosWallet, file)
@@ -321,7 +321,7 @@ func (s *GrandpaTestSuite) TestMsgMigrateContract_ContractError_GrandpaContract(
 
 	cosmosWallet := s.CreateUserOnChainB(ctx, testvalues.StartingTokenAmount)
 
-	file, err := os.Open("../data/ics10_grandpa_cw.wasm")
+	file, err := os.Open("../data/ics10_grandpa_cw.wasm.gz")
 	s.Require().NoError(err)
 
 	checksum := s.PushNewWasmClientProposal(ctx, cosmosChain, cosmosWallet, file)