diff --git a/gnu/local.mk b/gnu/local.mk
index 10c3192ade..2e02af8b71 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -1550,7 +1550,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/nginx-socket-cloexec.patch		\
   %D%/packages/patches/nnpack-system-libraries.patch		\
   %D%/packages/patches/nsis-env-passthru.patch			\
-  %D%/packages/patches/nsis-source-date-epoch.patch		\
   %D%/packages/patches/nss-getcwd-nonnull.patch			\
   %D%/packages/patches/nss-increase-test-timeout.patch		\
   %D%/packages/patches/nss-3.56-pkgconfig.patch			\
diff --git a/gnu/packages/installers.scm b/gnu/packages/installers.scm
index 01ad03e6af..30cd0e4e6c 100644
--- a/gnu/packages/installers.scm
+++ b/gnu/packages/installers.scm
@@ -34,16 +34,15 @@ (define (make-nsis machine target-arch nsis-target-type)
          (xgcc (cross-gcc triplet #:libc xlibc)))
     (package
       (name (string-append "nsis-" machine))
-      (version "3.05")
+      (version "3.08")
       (source (origin
                 (method url-fetch)
                 (uri (string-append "http://prdownloads.sourceforge.net/nsis/nsis-"
                                     version "-src.tar.bz2"))
                 (sha256
                  (base32
-                  "1sbwx5vzpddharkb7nj4q5z3i5fbg4lan63ng738cw4hmc4v7qdn"))
-                (patches (search-patches "nsis-env-passthru.patch"
-                                         "nsis-source-date-epoch.patch"))))
+                  "11qy1n1qdcqwal9hn8cmzm7gxjdyx7by6w14rfz2l646afnp0lm8"))
+                (patches (search-patches "nsis-env-passthru.patch"))))
       (build-system scons-build-system)
       (native-inputs `(("xgcc" ,xgcc)
                        ("xbinutils" ,xbinutils)
@@ -125,7 +124,7 @@ (define (mingw-path? path)
                       (lambda _
                         ;; NSIS target detection is screwed up, manually change
                         ;; it ourselves
-                        (substitute* "Source/build.cpp" (("m_target_type=TARGET_X86ANSI")
+                        (substitute* "Source/build.cpp" (("m_target_type=TARGET_X86UNICODE")
                                                          (string-append "m_target_type=" ,nsis-target-type))))))))
       (home-page "https://nsis.sourceforge.io/Main_Page")
       (synopsis "System to create Windows installers")
diff --git a/gnu/packages/patches/nsis-env-passthru.patch b/gnu/packages/patches/nsis-env-passthru.patch
index 36b4092230..22b186f55a 100644
--- a/gnu/packages/patches/nsis-env-passthru.patch
+++ b/gnu/packages/patches/nsis-env-passthru.patch
@@ -1,12 +1,11 @@
---- nsis-3.04-src/SConstruct	2019-05-30 14:53:30.276775332 -0400
-+++ nsis-3.04-src/SConstruct	2019-05-30 14:54:17.901232914 -0400
-@@ -77,6 +77,9 @@
- if not toolset and not path:
- 	defenv = Environment(TARGET_ARCH = arch)
+--- nsis-3.08-src/SConstruct	2021-01-15 17:31:10.000000000 +0100
++++ nsis-3.08-src/SConstruct-passthru	2022-08-02 17:11:12.414702282 +0200
+@@ -71,7 +71,7 @@
  
-+import os;
-+defenv['ENV'] = os.environ
-+
- Export('defenv')
+ defenv = {
+ 	'TARGET_ARCH': ARGUMENTS.get('TARGET_ARCH', 'x86'),
+-	'ENV': {}
++	'ENV': os.environ.copy()
+ }
  
  ######################################################################
diff --git a/gnu/packages/patches/nsis-source-date-epoch.patch b/gnu/packages/patches/nsis-source-date-epoch.patch
deleted file mode 100644
index 744c2a8011..0000000000
--- a/gnu/packages/patches/nsis-source-date-epoch.patch
+++ /dev/null
@@ -1,23 +0,0 @@
-Honour SOURCE_DATE_EPOCH for VERSION default
-
-Merged upstream as cd3f1024a37a332f1d4fa96a817ca80dfa2a478c, but not yet in a
-release. GitHub PR: https://github.com/kichik/nsis/pull/13
-
-Python snippet from: https://reproducible-builds.org/docs/source-date-epoch/#python
-
-
-diff --git a/SConstruct b/SConstruct
-index e8252c9..41786f2 100755
---- a/SConstruct
-+++ b/SConstruct
-@@ -95,8 +95,8 @@ default_doctype = 'html'
- if defenv.WhereIs('hhc', os.environ['PATH']):
- 	default_doctype = 'chm'
- 
--from time import strftime, gmtime
--cvs_version = strftime('%d-%b-%Y.cvs', gmtime())
-+import time
-+cvs_version = time.strftime('%d-%b-%Y.cvs', time.gmtime(int(os.environ.get('SOURCE_DATE_EPOCH', time.time()))))
- 
- opts = Variables()
-