diff --git a/recipes/spaln/meta.yaml b/recipes/spaln/meta.yaml
index bfe3e9905e581..e60806f95e1d8 100644
--- a/recipes/spaln/meta.yaml
+++ b/recipes/spaln/meta.yaml
@@ -1,20 +1,20 @@
 {% set name = "spaln" %}
-{% set version = "2.4.03" %}
-{% set sha256 = "6b7d19392485827b1711bbafdd9305d6ed33f92b4e4ba8ec0cfad4dc20364b23" %}
+{% set version = "2.4.4" %}
+{% set sha256 = "fb41361ee589431c6216ada6b42b3f87e36ecb619e41998a3981f89681a721b9" %}
 
 package:
   name: {{ name|lower }}
   version: {{ version }}
 
 source:
-  url: https://github.com/ogotoh/{{ name }}/archive/Ver.{{ version }}.tar.gz
+  url: https://github.com/ogotoh/{{ name }}/archive/refs/tags/ver.{{ version }}.tar.gz
   sha256: {{ sha256 }}
   patches:
     - patch-makefile_pl   # add a Makefile.PL for the Perl part of the code
     - patch-makefile_ldflags  # add a LDFLAGS variable to the Makefile
 
 build:
-  number: 1
+  number: 0
 
 requirements:
   build:
diff --git a/recipes/spaln/patch-makefile_ldflags b/recipes/spaln/patch-makefile_ldflags
index 337dadb127961..139c3a6c5d880 100644
--- a/recipes/spaln/patch-makefile_ldflags
+++ b/recipes/spaln/patch-makefile_ldflags
@@ -1,20 +1,20 @@
---- src/Makefile.in.orig	2019-04-11 13:29:08.707327000 +0200
-+++ src/Makefile.in	2019-04-11 13:44:56.235326000 +0200
-@@ -76,13 +76,13 @@
+--- src/Makefile.in	2021-04-26 03:36:44.000000000 +0100
++++ src/Makefile.in.ldflags	2021-05-11 16:59:24.000000000 +0100
+@@ -82,13 +82,13 @@
  	ls $(SRC) $(HDR)
  
  spaln:	spaln.o blksrc.o $(SLIB)
 -	$(CXX) -o spaln spaln.o blksrc.o $(SLIB) $(LLIB)
 +	$(CXX) $(LDFLAGS) -o spaln spaln.o blksrc.o $(SLIB) $(LLIB)
- sortgrcd:	sortgrcd.c $(SLIB)
--	$(CXX) -o sortgrcd sortgrcd.c $(SLIB) $(LLIB)
-+	$(CXX) $(LDFLAGS) -o sortgrcd sortgrcd.c $(SLIB) $(LLIB)
- makdbs: makdbs.c dbs.h seq.h bitpat.h $(SLIB)
--	$(CXX) -o makdbs makdbs.c $(SLIB) $(LLIB)
-+	$(CXX) $(LDFLAGS) -o makdbs makdbs.c $(SLIB) $(LLIB)
- makmdm: makmdm.c mdm.h $(CLIB)
--	$(CXX) -o makmdm makmdm.c $(CLIB) $(LLIB)
-+	$(CXX) $(LDFLAGS) -o makmdm makmdm.c $(CLIB) $(LLIB)
+ sortgrcd:	sortgrcd.cc $(SLIB)
+-	$(CXX) -o sortgrcd sortgrcd.cc $(SLIB) $(LLIB)
++	$(CXX) $(LDFLAGS) -o sortgrcd sortgrcd.cc $(SLIB) $(LLIB)
+ makdbs: makdbs.cc dbs.h seq.h bitpat.h $(SLIB)
+-	$(CXX) -o makdbs makdbs.cc $(SLIB) $(LLIB)
++	$(CXX) $(LDFLAGS) -o makdbs makdbs.cc $(SLIB) $(LLIB)
+ makmdm: makmdm.cc mdm.h $(CLIB)
+-	$(CXX) -o makmdm makmdm.cc $(CLIB) $(LLIB)
++	$(CXX) $(LDFLAGS) -o makmdm makmdm.cc $(CLIB) $(LLIB)
  
- spaln.o: spaln.c seq.h aln.h
- bitpat.o: bitpat.c bitpat.h
+ spaln.o: spaln.cc seq.h aln.h
+ bitpat.o: bitpat.cc bitpat.h