diff --git a/biology/diamond/Makefile b/biology/diamond/Makefile
index d45e49fd8006..e6b69cfa7132 100644
--- a/biology/diamond/Makefile
+++ b/biology/diamond/Makefile
@@ -1,22 +1,21 @@
 PORTNAME=	diamond
 DISTVERSIONPREFIX=	v
-DISTVERSION=	2.1.8
-PORTREVISION=	1
+DISTVERSION=	2.1.9
 CATEGORIES=	biology
 
 MAINTAINER=	jrm@FreeBSD.org
 COMMENT=	BLAST-compatible local sequence aligner
 WWW=		http://ab.inf.uni-tuebingen.de/software/diamond/
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 ONLY_FOR_ARCHS=	aarch64 amd64 powerpc64 powerpc64le
 
 USES=		cmake
 USE_GITHUB=	yes
 GH_ACCOUNT=	bbuchfink
 
 PLIST_FILES=	bin/diamond
 
 .include <bsd.port.mk>
diff --git a/biology/diamond/distinfo b/biology/diamond/distinfo
index e41c5047d693..7e27159cb67e 100644
--- a/biology/diamond/distinfo
+++ b/biology/diamond/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1688755811
-SHA256 (bbuchfink-diamond-v2.1.8_GH0.tar.gz) = b6088259f2bc92d1f9dc4add44590cff68321bcbf91eefbc295a3525118b9415
-SIZE (bbuchfink-diamond-v2.1.8_GH0.tar.gz) = 19027152
+TIMESTAMP = 1707069968
+SHA256 (bbuchfink-diamond-v2.1.9_GH0.tar.gz) = 4cde9df78c63e8aef9df1e3265cd06a93ce1b047d6dba513a1437719b70e9d88
+SIZE (bbuchfink-diamond-v2.1.9_GH0.tar.gz) = 5946668
diff --git a/biology/diamond/files/patch-src_util_data__structures_deque.h b/biology/diamond/files/patch-src_util_data__structures_deque.h
deleted file mode 100644
index efaa13f79a8a..000000000000
--- a/biology/diamond/files/patch-src_util_data__structures_deque.h
+++ /dev/null
@@ -1,14 +0,0 @@
---- src/util/data_structures/deque.h.orig	2023-12-29 18:15:28 UTC
-+++ src/util/data_structures/deque.h
-@@ -186,6 +186,11 @@ struct Deque {
- 			return *this;
- 		}
- 
-+		Iterator& operator-=(ptrdiff_t i) {
-+			i_ -= i;
-+			return *this;
-+		}
-+
- 	private:
- 
- 		ptrdiff_t i_;