diff --git a/devel/hs-haskell-language-server/Makefile b/devel/hs-haskell-language-server/Makefile
index 7c23243f4c4f..efb82edca721 100644
--- a/devel/hs-haskell-language-server/Makefile
+++ b/devel/hs-haskell-language-server/Makefile
@@ -1,68 +1,71 @@
 PORTNAME=	haskell-language-server
 DISTVERSION=	2.10.0.0
 PORTREVISION=	2
 CATEGORIES=	devel haskell
 
 MAINTAINER=	haskell@FreeBSD.org
 COMMENT=	LSP provider implementation for Haskell language
 WWW=		https://haskell-language-server.readthedocs.io/
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BROKEN_aarch64=	compiler crashes
 NOT_FOR_ARCHS=	i386
 
 FLAVORS=	default ghc94 ghc96
 FLAVOR?=	${FLAVORS:[1]}
 .if ${FLAVOR:U} != default
 PKGNAMESUFFIX=	-${FLAVOR}
 .endif
 
 # Do not use a flavor helper to let Uses/cabal.mk machinery to kick in
 .if ${FLAVOR:U} == ghc94
 BUILD_DEPENDS=	ghc-9.4.8:lang/ghc94
 GHC_VERSION=	9.4.8
 .elif ${FLAVOR:U} == ghc96
 BUILD_DEPENDS=	ghc-9.6.7:lang/ghc96
 GHC_VERSION=	9.6.7
 .endif
 
 USES=		cabal
 
 .for flavor in ${FLAVORS}
 .	include "Makefile.cabal.${flavor}"
 .endfor
 
 USE_CABAL=		${${FLAVOR}_USE_CABAL}
 CABAL_PROJECT=		append
 CABAL_FLAGS=		-dynamic
 CABAL_EXECUTABLES=	${PORTNAME} \
 			${PORTNAME}-wrapper
 
 .if ${FLAVOR:U} != default
 SKIP_CABAL_PLIST=	yes
 PLIST_FILES=		bin/${PORTNAME}-${GHC_VERSION}
 .endif
 
 # When running 'make makesum' we want USE_CABAL to include packages for all flavors
 .ifmake makesum
 .for f in ${FLAVORS}
 USE_CABAL+=		${${f}_USE_CABAL}
 .endfor
 .endif
 
+post-patch:
+	${REINPLACE_CMD} 's|jobs: 1|jobs: 2|' ${CABAL_HOME}/.cabal/config
+
 .include <bsd.port.pre.mk>
 
 .if ${ARCH} == aarch64
 # compiler goes out of memory
 BUILD_ARGS+=	--disable-optimization
 .endif
 
 .if ${FLAVOR:U} != default
 post-install:
 	${RM} ${STAGEDIR}${PREFIX}/bin/${PORTNAME}-wrapper
 	${MV} ${STAGEDIR}${PREFIX}/bin/${PORTNAME} ${STAGEDIR}${PREFIX}/bin/${PORTNAME}-${GHC_VERSION}
 .endif
 
 .include <bsd.port.post.mk>
diff --git a/devel/hs-ormolu/Makefile b/devel/hs-ormolu/Makefile
index 414a78954824..c839c2210a2f 100644
--- a/devel/hs-ormolu/Makefile
+++ b/devel/hs-ormolu/Makefile
@@ -1,47 +1,50 @@
 PORTNAME=	ormolu
 DISTVERSION=	0.7.7.0
 PORTREVISION=	1
 CATEGORIES=	devel haskell
 
 MAINTAINER=	haskell@FreeBSD.org
 COMMENT=	Formatter for Haskell source code
 WWW=		https://github.com/tweag/ormolu/
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE.md
 
 USES=		cabal
 
 CABAL_REVISION=	1
 USE_CABAL=	Cabal-syntax-3.12.1.0 \
 		Diff-1.0.2 \
 		MemoTrie-0.6.11 \
 		alex-3.5.3.0 \
 		ansi-terminal-1.1.2 \
 		ansi-terminal-types-1.1 \
 		case-insensitive-1.2.1.0 \
 		choice-0.2.4.1 \
 		colour-2.3.6 \
 		file-embed-0.0.16.0 \
 		ghc-lib-parser-9.10.2.20250503 \
 		happy-2.1.5 \
 		happy-lib-2.1.5 \
 		hashable-1.5.0.0_1 \
 		integer-logarithms-1.0.4 \
 		megaparsec-9.7.0 \
 		newtype-generics-0.6.2_4 \
 		optparse-applicative-0.18.1.0_1 \
 		os-string-2.0.7 \
 		parsec-3.1.18.0 \
 		parser-combinators-1.3.0_1 \
 		prettyprinter-1.7.1 \
 		prettyprinter-ansi-terminal-1.1.3 \
 		primitive-0.9.1.0 \
 		scientific-0.3.8.0_2 \
 		syb-0.7.2.4 \
 		text-2.1.2_1 \
 		th-compat-0.1.6 \
 		th-env-0.1.1 \
 		transformers-compat-0.7.2
 
+post-patch:
+	${REINPLACE_CMD} 's|jobs: 1|jobs: 2|' ${CABAL_HOME}/.cabal/config
+
 .include <bsd.port.mk>