diff --git a/contrib/devtools/security-check.py b/contrib/devtools/security-check.py
index e6a29b73b9..05c0af029e 100755
--- a/contrib/devtools/security-check.py
+++ b/contrib/devtools/security-check.py
@@ -12,10 +12,6 @@ from typing import List
 
 import lief #type:ignore
 
-# temporary constant, to be replaced with lief.ELF.ARCH.RISCV
-# https://github.com/lief-project/LIEF/pull/562
-LIEF_ELF_ARCH_RISCV = lief.ELF.ARCH(243)
-
 def check_ELF_RELRO(binary) -> bool:
     '''
     Check for read-only relocations.
@@ -101,7 +97,6 @@ def check_ELF_separate_code(binary):
     for segment in binary.segments:
         if segment.type ==  lief.ELF.SEGMENT_TYPES.LOAD:
             for section in segment.sections:
-                assert(section.name not in flags_per_section)
                 flags_per_section[section.name] = segment.flags
     # Spot-check ELF LOAD program header flags per section
     # If these sections exist, check them against the expected R/W/E flags
@@ -222,7 +217,7 @@ CHECKS = {
         lief.ARCHITECTURES.ARM: BASE_ELF,
         lief.ARCHITECTURES.ARM64: BASE_ELF,
         lief.ARCHITECTURES.PPC: BASE_ELF,
-        LIEF_ELF_ARCH_RISCV: BASE_ELF,
+        lief.ARCHITECTURES.RISCV: BASE_ELF,
     },
     lief.EXE_FORMATS.PE: {
         lief.ARCHITECTURES.X86: BASE_PE,
@@ -250,12 +245,9 @@ if __name__ == '__main__':
                 continue
 
             if arch == lief.ARCHITECTURES.NONE:
-                if binary.header.machine_type == LIEF_ELF_ARCH_RISCV:
-                    arch = LIEF_ELF_ARCH_RISCV
-                else:
-                    print(f'{filename}: unknown architecture')
-                    retval = 1
-                    continue
+                print(f'{filename}: unknown architecture')
+                retval = 1
+                continue
 
             failed: List[str] = []
             for (name, func) in CHECKS[etype][arch]:
diff --git a/contrib/devtools/symbol-check.py b/contrib/devtools/symbol-check.py
index 461132ae63..a419e392ee 100755
--- a/contrib/devtools/symbol-check.py
+++ b/contrib/devtools/symbol-check.py
@@ -15,10 +15,6 @@ from typing import List, Dict
 
 import lief #type:ignore
 
-# temporary constant, to be replaced with lief.ELF.ARCH.RISCV
-# https://github.com/lief-project/LIEF/pull/562
-LIEF_ELF_ARCH_RISCV = lief.ELF.ARCH(243)
-
 # Debian 9 (Stretch) EOL: 2022. https://wiki.debian.org/DebianReleases#Production_Releases
 #
 # - g++ version 6.3.0 (https://packages.debian.org/search?suite=stretch&arch=any&searchon=names&keywords=g%2B%2B)
@@ -44,7 +40,7 @@ MAX_VERSIONS = {
     lief.ELF.ARCH.ARM:    (2,18),
     lief.ELF.ARCH.AARCH64:(2,18),
     lief.ELF.ARCH.PPC64:  (2,18),
-    LIEF_ELF_ARCH_RISCV:  (2,27),
+    lief.ELF.ARCH.RISCV:  (2,27),
 },
 'LIBATOMIC': (1,0),
 'V':         (0,5,0),  # xkb (bitcoin-qt only)
@@ -78,7 +74,7 @@ ELF_INTERPRETER_NAMES: Dict[lief.ELF.ARCH, Dict[lief.ENDIANNESS, str]] = {
         lief.ENDIANNESS.BIG: "/lib64/ld64.so.1",
         lief.ENDIANNESS.LITTLE: "/lib64/ld64.so.2",
     },
-    LIEF_ELF_ARCH_RISCV:    {
+    lief.ELF.ARCH.RISCV:    {
         lief.ENDIANNESS.LITTLE: "/lib/ld-linux-riscv64-lp64d.so.1",
     },
 }
@@ -200,7 +196,7 @@ def check_exported_symbols(binary) -> bool:
         if not symbol.exported:
             continue
         name = symbol.name
-        if binary.header.machine_type == LIEF_ELF_ARCH_RISCV or name in IGNORE_EXPORTS:
+        if binary.header.machine_type == lief.ELF.ARCH.RISCV or name in IGNORE_EXPORTS:
             continue
         print(f'{binary.name}: export of symbol {name} not allowed!')
         ok = False
diff --git a/contrib/guix/manifest.scm b/contrib/guix/manifest.scm
index 371312be7e..3f110ab995 100644
--- a/contrib/guix/manifest.scm
+++ b/contrib/guix/manifest.scm
@@ -197,7 +197,7 @@ chain for " target " development."))
 (define-public lief
   (package
    (name "python-lief")
-   (version "0.11.5")
+   (version "0.12.0")
    (source
     (origin
      (method git-fetch)
@@ -207,7 +207,7 @@ chain for " target " development."))
      (file-name (git-file-name name version))
      (sha256
       (base32
-       "0qahjfg1n0x76ps2mbyljvws1l3qhkqvmxqbahps4qgywl2hbdkj"))))
+       "026jchj56q25v6gc0754dj9cj5hz5zaza8ij93y5ga94w20kzm9q"))))
    (build-system python-build-system)
    (native-inputs
     `(("cmake" ,cmake)))