diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [1.5.0] - 2026-08-12
+
+### Fixed
+
+- Use seckey instead of privkey aliases.
+
 ## [1.4.6] - 2025-05-09
 
 ### Removed
diff --git a/secp256k1-haskell.cabal b/secp256k1-haskell.cabal
--- a/secp256k1-haskell.cabal
+++ b/secp256k1-haskell.cabal
@@ -1,11 +1,11 @@
 cabal-version: 2.0
 
--- This file has been generated from package.yaml by hpack version 0.38.0.
+-- This file has been generated from package.yaml by hpack version 0.39.6.
 --
 -- see: https://github.com/sol/hpack
 
 name:           secp256k1-haskell
-version:        1.4.6
+version:        1.5.0
 synopsis:       Bindings for secp256k1
 description:    Sign and verify signatures using the secp256k1 library.
 category:       Crypto
diff --git a/src/Crypto/Secp256k1/Internal/BaseOps.hs b/src/Crypto/Secp256k1/Internal/BaseOps.hs
--- a/src/Crypto/Secp256k1/Internal/BaseOps.hs
+++ b/src/Crypto/Secp256k1/Internal/BaseOps.hs
@@ -117,14 +117,14 @@
     Ptr SecKey32 ->
     IO Ret
 
-foreign import ccall safe "secp256k1.h secp256k1_ec_privkey_tweak_add"
+foreign import ccall safe "secp256k1.h secp256k1_ec_seckey_tweak_add"
   ecSecKeyTweakAdd ::
     Ptr LCtx ->
     Ptr SecKey32 ->
     Ptr Tweak32 ->
     IO Ret
 
-foreign import ccall safe "secp256k1.h secp256k1_ec_privkey_negate"
+foreign import ccall safe "secp256k1.h secp256k1_ec_seckey_negate"
   ecTweakNegate ::
     Ptr LCtx ->
     Ptr Tweak32 ->
@@ -137,7 +137,7 @@
     Ptr Tweak32 ->
     IO Ret
 
-foreign import ccall safe "secp256k1.h secp256k1_ec_privkey_tweak_mul"
+foreign import ccall safe "secp256k1.h secp256k1_ec_seckey_tweak_mul"
   ecSecKeyTweakMul ::
     Ptr LCtx ->
     Ptr SecKey32 ->