diff --git a/Dockerfile b/Dockerfile
index b6dc1444ff3..219c81ebfe9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,7 +15,7 @@ RUN go mod download
 # TODO: how to use this instead of hardcoding GO_COSMWASM
 RUN basename $(ls -d /go/pkg/mod/github.com/\!cosm\!wasm/go-cosmwasm@v*)
 
-ENV GO_COSMWASM="v0.8.2-0.20200615221537-0fc920db0349"
+ENV GO_COSMWASM="v0.9.0-alpha2"
 
 # build go-cosmwasm *.a and install it
 WORKDIR /go/pkg/mod/github.com/\!cosm\!wasm/go-cosmwasm@${GO_COSMWASM}
diff --git a/go.mod b/go.mod
index ae9cc8872ec..2e4dfdc0098 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,7 @@ go 1.13
 
 require (
 	// Note: update ENV GO_COSMWASM in Dockerfile when updating this
-	github.com/CosmWasm/go-cosmwasm v0.8.2-0.20200622095049-ee163b5aafe0
+	github.com/CosmWasm/go-cosmwasm v0.9.0-alpha2
 	github.com/btcsuite/btcd v0.0.0-20190807005414-4063feeff79a // indirect
 	github.com/cosmos/cosmos-sdk v0.38.3
 	github.com/golang/mock v1.4.3 // indirect
diff --git a/go.sum b/go.sum
index 97d140a7ac5..ec5c0c1f86d 100644
--- a/go.sum
+++ b/go.sum
@@ -9,12 +9,8 @@ github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/ChainSafe/go-schnorrkel v0.0.0-20200102211924-4bcbc698314f h1:4O1om+UVU+Hfcihr1timk8YNXHxzZWgCo7ofnrZRApw=
 github.com/ChainSafe/go-schnorrkel v0.0.0-20200102211924-4bcbc698314f/go.mod h1:URdX5+vg25ts3aCh8H5IFZybJYKWhJHYMTnf+ULtoC4=
-github.com/CosmWasm/go-cosmwasm v0.8.2-0.20200615215318-6f82d95b1cb6 h1:o/CwMvx7YP+Mnu4MvEypThjpmimGcd0ahJYUqKLI4q8=
-github.com/CosmWasm/go-cosmwasm v0.8.2-0.20200615215318-6f82d95b1cb6/go.mod h1:gAFCwllx97ejI+m9SqJQrmd2SBW7HA0fOjvWWJjM2uc=
-github.com/CosmWasm/go-cosmwasm v0.8.2-0.20200615221537-0fc920db0349 h1:SsPn/AHKtsZqKlGfXXArT/OUur9wJY79YNjFCIv1JZw=
-github.com/CosmWasm/go-cosmwasm v0.8.2-0.20200615221537-0fc920db0349/go.mod h1:gAFCwllx97ejI+m9SqJQrmd2SBW7HA0fOjvWWJjM2uc=
-github.com/CosmWasm/go-cosmwasm v0.8.2-0.20200622095049-ee163b5aafe0 h1:cMbSZNFHkOsz+uJ+OsqiYPa5RTLQ/7eQsOIRJJM7eh4=
-github.com/CosmWasm/go-cosmwasm v0.8.2-0.20200622095049-ee163b5aafe0/go.mod h1:gAFCwllx97ejI+m9SqJQrmd2SBW7HA0fOjvWWJjM2uc=
+github.com/CosmWasm/go-cosmwasm v0.9.0-alpha2 h1:dOY+aro+Hgnpwrt5T/JqaxVWqdIx+onRy7swqe1PLCQ=
+github.com/CosmWasm/go-cosmwasm v0.9.0-alpha2/go.mod h1:gAFCwllx97ejI+m9SqJQrmd2SBW7HA0fOjvWWJjM2uc=
 github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=