diff --git a/build/aleth-interpreter.sh b/build/aleth-interpreter.sh
index 1a61d155d101c..42942cabac008 100755
--- a/build/aleth-interpreter.sh
+++ b/build/aleth-interpreter.sh
@@ -9,5 +9,6 @@ if [[ "$OSTYPE" != "linux"* ]]; then
 fi
 
 mkdir -p build/_workspace/aleth
+[[ -f build/_workspace/aleth/aleth-1.8.0-linux-x86_64.tar.gz ]] && exit 0
 wget -O build/_workspace/aleth/aleth-1.8.0-linux-x86_64.tar.gz https://github.com/ethereum/aleth/releases/download/v1.8.0/aleth-1.8.0-linux-x86_64.tar.gz
 tar xzvf build/_workspace/aleth/aleth-1.8.0-linux-x86_64.tar.gz -C build/_workspace/aleth/
diff --git a/build/evmone.sh b/build/evmone.sh
index 0aea9cddc40c3..36c379d13dca7 100755
--- a/build/evmone.sh
+++ b/build/evmone.sh
@@ -8,5 +8,6 @@ if [[ "$OSTYPE" != "linux"* ]]; then
 fi
 
 mkdir -p build/_workspace/evmone
+[[ -f build/_workspace/evmone/evmone-0.5.0-linux-x86_64.tar.gz ]] && exit 0
 wget -O build/_workspace/evmone/evmone-0.5.0-linux-x86_64.tar.gz https://github.com/ethereum/evmone/releases/download/v0.5.0/evmone-0.5.0-linux-x86_64.tar.gz
 tar xzvf build/_workspace/evmone/evmone-0.5.0-linux-x86_64.tar.gz -C build/_workspace/evmone/
diff --git a/build/ssvm.sh b/build/ssvm.sh
index 949f2cc1cdb44..c6d33c70f17a9 100755
--- a/build/ssvm.sh
+++ b/build/ssvm.sh
@@ -8,5 +8,6 @@ if [[ "$OSTYPE" != "linux"* ]]; then
 fi
 
 mkdir -p build/_workspace/SSVM/build/tools/ssvm-evmc/
+[[ -f build/_workspace/SSVM/build/tools/ssvm-evmc/libssvmEVMC.so ]] && exit 0
 wget -O build/_workspace/SSVM/build/tools/ssvm-evmc/libssvmEVMC.so \
     https://github.com/second-state/ssvm-evmc/releases/download/evmc7-0.1.1/libssvm-evmc.so