diff --git a/envs/sandbox.env b/envs/sandbox.env
index 1b25b72237..f42a91a97d 100644
--- a/envs/sandbox.env
+++ b/envs/sandbox.env
@@ -3,22 +3,22 @@ CONFIGURED=true
 RUST_LOG=info
 RUST_BACKTRACE=1
 
-BECH32_PREFIX=nymt
-MIX_DENOM=unymt
-MIX_DENOM_DISPLAY=nymt
-STAKE_DENOM=unyxt
-STAKE_DENOM_DISPLAY=nyxt
+BECH32_PREFIX=n
+MIX_DENOM=unym
+MIX_DENOM_DISPLAY=nym
+STAKE_DENOM=unyx
+STAKE_DENOM_DISPLAY=nyx
 DENOMS_EXPONENT=6
 
-REWARDING_VALIDATOR_ADDRESS="nymt1mxuweurc066kprnngtm8zmvam7m2nw26yatpmv"
-MIXNET_CONTRACT_ADDRESS="nymt1dlsvvgey26ernlj0sq2afjluh3qd4ap0k9eerekfkw5algqrwqksaf2qf7"
-VESTING_CONTRACT_ADDRESS="nymt19g9xuqrvz2frv905v3fc7puryfypluhg383q9zwsmedrlqekfgys62ykm4"
-BANDWIDTH_CLAIM_CONTRACT_ADDRESS="nymt1rhmk9udessnv3r8f3eh2s03f45svnjaczpmcqz"
-MULTISIG_CONTRACT_ADDRESS="nymt142dkm8xe9f0ytyarp7ww4kvclva65705jphxsk9exn3nqdsm8jkqnp06ac"
-COCONUT_BANDWIDTH_CONTRACT_ADDRESS="nymt1ty0frysegskh6ndm3v96z5xdq66qzcu0aw7xcxlgp54jg0mjwlgqplc6v0"
-COCONUT_DKG_CONTRACT_ADDRESS="nymt1gwk6muhmzeuxje7df7rjvqwl2vex0kj4t2hwuzmyx5k62kfusu5qk4k5z4"
-GROUP_CONTRACT_ADDRESS="nymt14ry36mwauycz08v8ndcujghxz4hmua5epxcn0mamlr3suqe0l2qsqx5ya2"
+REWARDING_VALIDATOR_ADDRESS=n1pefc2utwpy5w78p2kqdsfmpjxfwmn9d39k5mqa
+MIXNET_CONTRACT_ADDRESS=n1xr3rq8yvd7qplsw5yx90ftsr2zdhg4e9z60h5duusgxpv72hud3sjkxkav
+VESTING_CONTRACT_ADDRESS=n1unyuj8qnmygvzuex3dwmg9yzt9alhvyeat0uu0jedg2wj33efl5qackslz
+BANDWIDTH_CLAIM_CONTRACT_ADDRESS=n19lc9u84cz0yz3fww5283nucc9yvr8gsjmgeul0
+COCONUT_BANDWIDTH_CONTRACT_ADDRESS=n16a32stm6kknhq5cc8rx77elr66pygf2hfszw7wvpq746x3uffylqkjar4l
+GROUP_CONTRACT_ADDRESS=n1pd7kfgvr5tpcv0xnlv46c4jsq9jg2r799xxrcwqdm4l2jhq2pjwqrmz5ju
+MULTISIG_CONTRACT_ADDRESS=n14ph4e660eyqz0j36zlkaey4zgzexm5twkmjlqaequxr2cjm9eprqsmad6k
+COCONUT_DKG_CONTRACT_ADDRESS=n1ahg0erc2fs6xx3j5m8sfx3ryuzdjh6kf6qm9plsf865fltekyrfsesac6a
 
 STATISTICS_SERVICE_DOMAIN_ADDRESS="http://0.0.0.0"
 NYXD="https://sandbox-validator1.nymtech.net"
-NYM_API="https://sandbox-validator1-api.nymtech.net/api"
\ No newline at end of file
+NYM_API="https://sandbox-nym-api1.nymtech.net/api"
\ No newline at end of file