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-rw-r--r--std/StandardToken.sol2
1 files changed, 1 insertions, 1 deletions
diff --git a/std/StandardToken.sol b/std/StandardToken.sol
index 5afc9747..ca0658f2 100644
--- a/std/StandardToken.sol
+++ b/std/StandardToken.sol
@@ -1,4 +1,4 @@
-pragma solidity >0.4.21;
+pragma solidity ^0.4.22;
import "./Token.sol";