diff --git a/.circleci/config.yml b/.circleci/config.yml
index 70121b404..0062a9b32 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -125,6 +125,12 @@ jobs:
       - run:
           name: Build package "cosmwasm" without cgo
           command: CGO_ENABLED=0 go build .
+      - run:
+          name: Test package "types" without cgo
+          command: CGO_ENABLED=0 go test ./types
+      - run:
+          name: Test package "cosmwasm" without cgo
+          command: CGO_ENABLED=0 go test .
 
   tidy-go:
     docker:
diff --git a/ibc_test.go b/ibc_test.go
index d72b3f9d1..fd1df5710 100644
--- a/ibc_test.go
+++ b/ibc_test.go
@@ -1,3 +1,5 @@
+//go:build cgo
+
 package cosmwasm
 
 import (
diff --git a/lib_test.go b/lib_test.go
index 112c203ac..a2302b3d1 100644
--- a/lib_test.go
+++ b/lib_test.go
@@ -1,3 +1,5 @@
+//go:build cgo
+
 package cosmwasm
 
 import (