diff --git a/pkgs/development/libraries/boehm-gc/7.6.6.nix b/pkgs/development/libraries/boehm-gc/7.6.6.nix
deleted file mode 100644
index 13f490af3e2b..000000000000
--- a/pkgs/development/libraries/boehm-gc/7.6.6.nix
+++ /dev/null
@@ -1,74 +0,0 @@
-{ lib, stdenv, fetchurl, fetchpatch, pkg-config, libatomic_ops
-, enableLargeConfig ? false # doc: https://github.com/ivmai/bdwgc/blob/v7.6.6/doc/README.macros#L179
-}:
-
-stdenv.mkDerivation rec {
-  pname = "boehm-gc";
-  version = "7.6.6";
-
-  src = fetchurl {
-    urls = [
-      "https://www.hboehm.info/gc/gc_source/gc-${version}.tar.gz"
-      "https://github.com/ivmai/bdwgc/releases/download/v${version}/gc-${version}.tar.gz"
-    ];
-    sha256 = "1p1r015a7jbpvkkbgzv1y8nxrbbp6dg0mq3ksi6ji0qdz3wfss79";
-  };
-
-  buildInputs = [ libatomic_ops ];
-  nativeBuildInputs = [ pkg-config ];
-
-  outputs = [ "out" "dev" "doc" ];
-  separateDebugInfo = stdenv.isLinux;
-
-  preConfigure = lib.optionalString (stdenv.hostPlatform.libc == "musl") ''
-    export NIX_CFLAGS_COMPILE+=" -D_GNU_SOURCE -DUSE_MMAP -DHAVE_DL_ITERATE_PHDR"
-  '';
-
-  patches = [ (fetchpatch {
-    url = "https://gitweb.gentoo.org/proj/musl.git/plain/dev-libs/boehm-gc/files/boehm-gc-7.6.0-sys_select.patch";
-    sha256 = "1gydwlklvci30f5dpp5ccw2p2qpph5y41r55wx9idamjlq66fbb3";
-  }) ] ++
-    # https://github.com/ivmai/bdwgc/pull/208
-    lib.optional stdenv.hostPlatform.isRiscV ./riscv.patch;
-
-  configureFlags =
-    [ "--enable-cplusplus" ]
-    ++ lib.optional enableLargeConfig "--enable-large-config"
-    ++ lib.optional (stdenv.hostPlatform.libc == "musl") "--disable-static";
-
-  doCheck = true; # not cross;
-
-  # Don't run the native `strip' when cross-compiling.
-  dontStrip = stdenv.hostPlatform != stdenv.buildPlatform;
-
-  enableParallelBuilding = true;
-
-  meta = {
-    description = "The Boehm-Demers-Weiser conservative garbage collector for C and C++";
-
-    longDescription = ''
-      The Boehm-Demers-Weiser conservative garbage collector can be used as a
-      garbage collecting replacement for C malloc or C++ new.  It allows you
-      to allocate memory basically as you normally would, without explicitly
-      deallocating memory that is no longer useful.  The collector
-      automatically recycles memory when it determines that it can no longer
-      be otherwise accessed.
-
-      The collector is also used by a number of programming language
-      implementations that either use C as intermediate code, want to
-      facilitate easier interoperation with C libraries, or just prefer the
-      simple collector interface.
-
-      Alternatively, the garbage collector may be used as a leak detector for
-      C or C++ programs, though that is not its primary goal.
-    '';
-
-    homepage = "https://hboehm.info/gc/";
-
-    # non-copyleft, X11-style license
-    license = "https://hboehm.info/gc/license.txt";
-
-    maintainers = [ ];
-    platforms = lib.platforms.all;
-  };
-}
diff --git a/pkgs/development/libraries/boehm-gc/default.nix b/pkgs/development/libraries/boehm-gc/default.nix
index 85ae01036ed1..2c467e90634f 100644
--- a/pkgs/development/libraries/boehm-gc/default.nix
+++ b/pkgs/development/libraries/boehm-gc/default.nix
@@ -1,18 +1,18 @@
 { lib, stdenv, fetchurl
 , autoreconfHook
-, enableLargeConfig ? false # doc: https://github.com/ivmai/bdwgc/blob/v7.6.6/doc/README.macros#L179
+, enableLargeConfig ? false # doc: https://github.com/ivmai/bdwgc/blob/v8.0.6/doc/README.macros#L195
 }:
 
 stdenv.mkDerivation rec {
   pname = "boehm-gc";
-  version = "8.0.4";
+  version = "8.0.6";
 
   src = fetchurl {
     urls = [
       "https://github.com/ivmai/bdwgc/releases/download/v${version}/gc-${version}.tar.gz"
       "https://www.hboehm.info/gc/gc_source/gc-${version}.tar.gz"
     ];
-    sha256 = "1798rp3mcfkgs38ynkbg2p47bq59pisrc6mn0l20pb5iczf0ssj3";
+    sha256 = "3b4914abc9fa76593596773e4da671d7ed4d5390e3d46fbf2e5f155e121bea11";
   };
 
   outputs = [ "out" "dev" "doc" ];
@@ -22,10 +22,8 @@ stdenv.mkDerivation rec {
     export NIX_CFLAGS_COMPILE+=" -D_GNU_SOURCE -DUSE_MMAP -DHAVE_DL_ITERATE_PHDR"
   '';
 
-  patches = # https://github.com/ivmai/bdwgc/pull/208
-    lib.optional stdenv.hostPlatform.isRiscV ./riscv.patch
-    # boehm-gc whitelists GCC threading models
-    ++ lib.optional stdenv.hostPlatform.isMinGW ./mcfgthread.patch;
+  # boehm-gc whitelists GCC threading models
+  patches = lib.optional stdenv.hostPlatform.isMinGW ./mcfgthread.patch;
 
   configureFlags =
     [ "--enable-cplusplus" "--with-libatomic-ops=none" ]
diff --git a/pkgs/development/libraries/boehm-gc/riscv.patch b/pkgs/development/libraries/boehm-gc/riscv.patch
deleted file mode 100644
index 249137d0a0dc..000000000000
--- a/pkgs/development/libraries/boehm-gc/riscv.patch
+++ /dev/null
@@ -1,53 +0,0 @@
-diff --git a/include/private/gcconfig.h b/include/private/gcconfig.h
-index a8e55dd2..439cc88d 100644
---- a/include/private/gcconfig.h
-+++ b/include/private/gcconfig.h
-@@ -650,6 +650,15 @@
- #   endif
- #   define mach_type_known
- # endif
-+# if defined(__riscv) && defined(LINUX)
-+#   if __riscv_xlen == 32
-+#     define RISCV32
-+#     define mach_type_known
-+#   elif __riscv_xlen == 64
-+#     define RISCV64
-+#     define mach_type_known
-+#   endif
-+# endif
- 
- # if defined(SN_TARGET_PSP2)
- #   define mach_type_known
-@@ -2970,6 +2979,32 @@
- #   endif
- # endif
- 
-+# ifdef RISCV32
-+#   define CPP_WORDSZ 32
-+#   define MACH_TYPE "RISC-V 32"
-+#   define ALIGNMENT 4
-+#   ifdef LINUX
-+#     define OS_TYPE "LINUX"
-+      extern int __data_start[];
-+#     define DATASTART ((ptr_t)__data_start)
-+#     define LINUX_STACKBOTTOM
-+#     define DYNAMIC_LOADING
-+#   endif
-+# endif
-+
-+# ifdef RISCV64
-+#   define CPP_WORDSZ 64
-+#   define MACH_TYPE "RISC-V 64"
-+#   define ALIGNMENT 8
-+#   ifdef LINUX
-+#     define OS_TYPE "LINUX"
-+      extern int __data_start[];
-+#     define DATASTART ((ptr_t)__data_start)
-+#     define LINUX_STACKBOTTOM
-+#     define DYNAMIC_LOADING
-+#   endif
-+# endif
-+
- #if defined(__GLIBC__) && !defined(DONT_USE_LIBC_PRIVATES)
-   /* Use glibc's stack-end marker. */
- # define USE_LIBC_PRIVATES
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index c2ab429c438f..340e45159d91 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -15441,7 +15441,6 @@ with pkgs;
   bobcat = callPackage ../development/libraries/bobcat { };
 
   boehmgc = callPackage ../development/libraries/boehm-gc { };
-  boehmgc_766 = callPackage ../development/libraries/boehm-gc/7.6.6.nix { };
 
   boolstuff = callPackage ../development/libraries/boolstuff { };