diff --git a/audio/iir1/Makefile b/audio/iir1/Makefile
index b534f282246e..a46f24d89c50 100644
--- a/audio/iir1/Makefile
+++ b/audio/iir1/Makefile
@@ -1,20 +1,20 @@
 PORTNAME=	iir1
-DISTVERSION=	1.9.3
+DISTVERSION=	1.9.4
 CATEGORIES=	audio
 
 MAINTAINER=	makc@FreeBSD.org
 COMMENT=	DSP IIR Realtime C++ filter library
 WWW=		https://github.com/berndporr/iir1
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 USES=		cmake
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	berndporr
 USE_LDCONFIG=	yes
 
 PLIST_SUB=	SHLIB_VER=${PORTVERSION}
 
 .include <bsd.port.mk>
diff --git a/audio/iir1/distinfo b/audio/iir1/distinfo
index 1d6d0ab6d127..9aaece748111 100644
--- a/audio/iir1/distinfo
+++ b/audio/iir1/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1665689533
-SHA256 (berndporr-iir1-1.9.3_GH0.tar.gz) = de241ef7a3e5ae8e1309846fe820a2e18978aa3df3922bd83c2d75a0fcf4e78f
-SIZE (berndporr-iir1-1.9.3_GH0.tar.gz) = 2092743
+TIMESTAMP = 1673205551
+SHA256 (berndporr-iir1-1.9.4_GH0.tar.gz) = 67d0982356f33fd37522e4711cda12f70a981a9c83de332386f89de3d7601d2b
+SIZE (berndporr-iir1-1.9.4_GH0.tar.gz) = 2115692