diff --git a/Cargo.toml b/Cargo.toml
index 111ed53..36bdb54 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "spectre-miner"
-version = "0.3.14"
+version = "0.3.15"
 edition = "2021"
 license = "MIT/Apache-2.0"
 authors = ["Spectre developers"]
@@ -36,7 +36,7 @@ keccak = { version = "0.1", optional = true }
 parking = { package = "parking_lot", version = "0.12", optional = true }
 shuttle = { version = "0.6", optional = true }
 chrono = "0.4"
-spectrex = "0.3.15"
+spectrex = ">=0.3.17"
 
 [features]
 default = ["keccak?/asm"]
diff --git a/README.md b/README.md
index 3e6729a..299d694 100644
--- a/README.md
+++ b/README.md
@@ -93,9 +93,9 @@ following flags:
 ./spectre-miner --mining-address=<spectre:XXXXX> --devfund=spectre:qrxf48dgrdkjxllxczek3uweuldtan9nanzjsavk0ak9ynwn0zsayjjh7upez
 ```
 
-Without specifying `--devfund-precent` it will default to 1%. If you
+Without specifying `--devfund-percent` it will default to 1%. If you
 want to change the percentage, you can pass the option
-`--devfund-precent=XX.YY` to mine only XX.YY% of the blocks into the
+`--devfund-percent=XX.YY` to mine only XX.YY% of the blocks into the
 devfund.
 
 ## License