diff --git a/math/clp/Makefile b/math/clp/Makefile
index 5be6ddc4ac35..167f2eff41ab 100644
--- a/math/clp/Makefile
+++ b/math/clp/Makefile
@@ -1,47 +1,50 @@
 PORTNAME=	Clp
-DISTVERSION=	1.17.6
-PORTREVISION=	2
+DISTVERSION=	1.17.8
 CATEGORIES=	math
-MASTER_SITES=	https://www.coin-or.org/download/source/${PORTNAME}/
 PKGNAMEPREFIX=	coin-or-
 
 MAINTAINER=	co9co9@gmail.com
 COMMENT=	Linear Programming Solver
 WWW=		https://www.coin-or.org/Clp/index.html
 
 LICENSE=	EPL
 
 BUILD_DEPENDS=	coin-or-Data-Sample>0:math/coin-or-data-sample \
 		coin-or-Data-Netlib>0:math/coin-or-data-netlib
 LIB_DEPENDS=	libcoinasl.so:math/asl \
 		libcoinmetis.so:math/coin-or-metis \
 		libcoinmumps.so:math/coin-or-mumps \
 		libCoinUtils.so:math/coinutils \
 		libOsi.so:math/osi
 RUN_DEPENDS=	coin-or-Data-Sample>0:math/coin-or-data-sample \
 		coin-or-Data-Netlib>0:math/coin-or-data-netlib
 
 USES=		blaslapack compiler:c++11-lang fortran libtool pathfix pkgconfig tar:tgz
-GNU_CONFIGURE=	yes
 USE_LDCONFIG=	yes
 
+USE_GITHUB=	yes
+GH_ACCOUNT=	coin-or
+GH_TAGNAME=	releases/${DISTVERSION}
+
+GNU_CONFIGURE=	yes
+
 INSTALL_TARGET=	install-strip
 
 CONFIGURE_ARGS=	--with-lapack-lib="${LAPACKLIB} -L${LOCALBASE}/lib" \
 		--with-blas-lib="${BLASLIB} -L${LOCALBASE}/lib" \
 		--with-osi-incdir="${LOCALBASE}/include/coin" --with-osi-lib="${LOCALBASE}/lib/libOsi.so" \
 		--with-coinutils-incdir="${LOCALBASE}/include/coin" --with-coinutils-lib="${LOCALBASE}/lib/libCoinUtils.so" \
 		--with-netlib-datadir="${LOCALBASE}/share/coin/Data/Netlib" \
 		--with-sample-datadir="${LOCALBASE}/share/coin/Data/Sample" \
 		--datadir=${DATADIR}
 
 TEST_TARGET=	unitTest
 TEST_WRKSRC=	${WRKSRC}/${PORTNAME}
 
 OPTIONS_DEFINE=	DEBUG DOCS
 PORTDOCS=	*
 
 CXXFLAGS+=	-ffast-math
 DEBUG_CXXFLAGS=	-fomit-frame-pointer
 
 .include <bsd.port.mk>
diff --git a/math/clp/distinfo b/math/clp/distinfo
index 7837287980fd..3e16e0663ba1 100644
--- a/math/clp/distinfo
+++ b/math/clp/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1645727981
-SHA256 (Clp-1.17.6.tgz) = f9cfcdd3db23bbc2d18b562012a7e25b99a40e8ce72dc296bd46dddb2970e12a
-SIZE (Clp-1.17.6.tgz) = 9972859
+TIMESTAMP = 1686847296
+SHA256 (coin-or-Clp-1.17.8-releases-1.17.8_GH0.tar.gz) = f9931b5ba44f0daf445c6b48fc2c250dc12e667e59ace8ea7b025f158fe31556
+SIZE (coin-or-Clp-1.17.8-releases-1.17.8_GH0.tar.gz) = 2168391
diff --git a/math/clp/files/patch-Osi_test_OsiTestSolverInterfaceIO.cpp b/math/clp/files/patch-Osi_test_OsiTestSolverInterfaceIO.cpp
deleted file mode 100644
index 2a921f8eb236..000000000000
--- a/math/clp/files/patch-Osi_test_OsiTestSolverInterfaceIO.cpp
+++ /dev/null
@@ -1,16 +0,0 @@
---- Osi/test/OsiTestSolverInterfaceIO.cpp.orig	2018-04-16 06:54:20 UTC
-+++ Osi/test/OsiTestSolverInterfaceIO.cpp
-@@ -422,10 +422,10 @@ OsiTestSolverInterface::writeMps(const c
-    writer.setMpsData(*getMatrixByCol(), getInfinity(),
- 		     getColLower(), getColUpper(),
- 		     getObjCoefficients(), 
--		     reinterpret_cast<const char *> (NULL) /*integrality*/,
-+		     nullptr /*integrality*/,
- 		     getRowLower(), getRowUpper(),
--		     reinterpret_cast<const char **> (NULL) /*colnam*/, 
--		     reinterpret_cast<const char **> (NULL) /*rownam*/);
-+		     nullptr /*colnam*/, 
-+		     nullptr /*rownam*/);
-    std::string fname = filename;
-    if (extension)
-    { if (extension[0] != '\0' && extension[0] != '.')
diff --git a/math/clp/pkg-plist b/math/clp/pkg-plist
index 2e4b29c03503..fc40cc55b527 100644
--- a/math/clp/pkg-plist
+++ b/math/clp/pkg-plist
@@ -1,68 +1,67 @@
 bin/clp
 include/coin/CbcOrClpParam.cpp
 include/coin/CbcOrClpParam.hpp
 include/coin/ClpCholeskyBase.hpp
 include/coin/ClpCholeskyDense.hpp
 include/coin/ClpCholeskyMumps.hpp
 include/coin/ClpCholeskyPardiso.hpp
 include/coin/ClpConfig.h
 include/coin/ClpConstraint.hpp
 include/coin/ClpConstraintLinear.hpp
 include/coin/ClpConstraintQuadratic.hpp
 include/coin/ClpDualRowDantzig.hpp
 include/coin/ClpDualRowPivot.hpp
 include/coin/ClpDualRowSteepest.hpp
 include/coin/ClpDummyMatrix.hpp
 include/coin/ClpDynamicExampleMatrix.hpp
 include/coin/ClpDynamicMatrix.hpp
 include/coin/ClpEventHandler.hpp
 include/coin/ClpFactorization.hpp
 include/coin/ClpGubDynamicMatrix.hpp
 include/coin/ClpGubMatrix.hpp
 include/coin/ClpInterior.hpp
 include/coin/ClpLinearObjective.hpp
 include/coin/ClpMatrixBase.hpp
 include/coin/ClpMessage.hpp
 include/coin/ClpModel.hpp
 include/coin/ClpNetworkMatrix.hpp
 include/coin/ClpNode.hpp
 include/coin/ClpNonLinearCost.hpp
 include/coin/ClpObjective.hpp
 include/coin/ClpPEDualRowDantzig.hpp
 include/coin/ClpPEDualRowSteepest.hpp
 include/coin/ClpPEPrimalColumnDantzig.hpp
 include/coin/ClpPEPrimalColumnSteepest.hpp
 include/coin/ClpPESimplex.hpp
 include/coin/ClpPackedMatrix.hpp
 include/coin/ClpParameters.hpp
 include/coin/ClpPdcoBase.hpp
 include/coin/ClpPlusMinusOneMatrix.hpp
 include/coin/ClpPresolve.hpp
 include/coin/ClpPrimalColumnDantzig.hpp
 include/coin/ClpPrimalColumnPivot.hpp
 include/coin/ClpPrimalColumnSteepest.hpp
 include/coin/ClpQuadraticObjective.hpp
 include/coin/ClpSimplex.hpp
 include/coin/ClpSimplexDual.hpp
 include/coin/ClpSimplexNonlinear.hpp
 include/coin/ClpSimplexOther.hpp
 include/coin/ClpSimplexPrimal.hpp
 include/coin/ClpSolve.hpp
 include/coin/Clp_C_Interface.h
 include/coin/Idiot.hpp
 include/coin/OsiClpSolverInterface.hpp
 lib/libClp.so
 lib/libClp.so.1
-lib/libClp.so.1.14.6
+lib/libClp.so.1.14.8
 lib/libClpSolver.so
 lib/libClpSolver.so.1
-lib/libClpSolver.so.1.14.6
+lib/libClpSolver.so.1.14.8
 lib/libOsiClp.so
 lib/libOsiClp.so.1
-lib/libOsiClp.so.1.14.6
+lib/libOsiClp.so.1.14.8
 libdata/pkgconfig/clp.pc
 libdata/pkgconfig/osi-clp.pc
 %%DATADIR%%/coin/doc/Clp/AUTHORS
 %%DATADIR%%/coin/doc/Clp/LICENSE
-%%DATADIR%%/coin/doc/Clp/README
 %%DATADIR%%/coin/doc/Clp/clp_addlibs.txt