diff --git a/.gitignore b/.gitignore
index ebb94e0..1a3a04c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,5 +6,3 @@
 /libmimalloc-sys-0.1.39.crate
 /libmimalloc-sys-0.1.42.crate
 /libmimalloc-sys-0.1.44.crate
-/libmimalloc-sys-0.1.47.crate
-/libmimalloc-sys-0.1.49.crate
diff --git a/get-bundled-mimalloc-ver.sh b/get-bundled-mimalloc-ver.sh
index 3350ba9..ba2b568 100755
--- a/get-bundled-mimalloc-ver.sh
+++ b/get-bundled-mimalloc-ver.sh
@@ -1,5 +1,4 @@
 #!/bin/sh
 for v in 2 3; do
-  ver=$(grep "define MI_MALLOC_VERSION" libmimalloc-sys-*/c_src/mimalloc/v$v/include/mimalloc.h | cut -d' ' -f3)
-  printf '%d.%d.%d\n' $((ver / 10000)) $(((ver / 100) % 100)) $((ver % 100))
+  grep "define MI_MALLOC_VERSION" libmimalloc-sys-*/c_src/mimalloc/v$v/include/mimalloc.h | cut -d' ' -f3 | fold -w1 | paste -sd.
 done
diff --git a/rust-libmimalloc-sys.spec b/rust-libmimalloc-sys.spec
index 05cbfce..82cc4f9 100644
--- a/rust-libmimalloc-sys.spec
+++ b/rust-libmimalloc-sys.spec
@@ -1,11 +1,11 @@
-# Generated by rust2rpm 28
+# Generated by rust2rpm 27
 %bcond check 1
 %global debug_package %{nil}
 
 %global crate libmimalloc-sys
 
 Name:           rust-libmimalloc-sys
-Version:        0.1.49
+Version:        0.1.44
 Release:        %autorelease
 Summary:        Sys crate wrapping the mimalloc allocator
 
@@ -19,8 +19,8 @@ BuildRequires:  cargo-rpm-macros >= 24
 # or ask mimalloc dev to switch to mimalloc-sys
 # https://github.com/purpleprotocol/mimalloc_rust/issues/73
 # use get-bundled-mimalloc-ver.sh after unpacking the crate
-Provides:       bundled(mimalloc) = 2.3.2
-Provides:       buncled(mimalloc) = 3.3.2
+Provides:       bundled(mimalloc) = 2.2.4
+Provides:       bundled(mimalloc) = 3.1.5
 
 %global _description %{expand:
 Sys crate wrapping the mimalloc allocator.}
@@ -162,28 +162,16 @@ use the "secure" feature of the "%{crate}" crate.
 %files       -n %{name}+secure-devel
 %ghost %{crate_instdir}/Cargo.toml
 
-%package     -n %{name}+v2-devel
+%package     -n %{name}+v3-devel
 Summary:        %{summary}
 BuildArch:      noarch
 
-%description -n %{name}+v2-devel %{_description}
+%description -n %{name}+v3-devel %{_description}
 
 This package contains library source intended for building other packages which
-use the "v2" feature of the "%{crate}" crate.
+use the "v3" feature of the "%{crate}" crate.
 
-%files       -n %{name}+v2-devel
-%ghost %{crate_instdir}/Cargo.toml
-
-%package     -n %{name}+win_direct_tls-devel
-Summary:        %{summary}
-BuildArch:      noarch
-
-%description -n %{name}+win_direct_tls-devel %{_description}
-
-This package contains library source intended for building other packages which
-use the "win_direct_tls" feature of the "%{crate}" crate.
-
-%files       -n %{name}+win_direct_tls-devel
+%files       -n %{name}+v3-devel
 %ghost %{crate_instdir}/Cargo.toml
 
 %prep
diff --git a/sources b/sources
index 0aaff51..c39a392 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (libmimalloc-sys-0.1.49.crate) = cffbf1e23a417ea14924678d67bfa6f1e982029fa133d01d50b9e6c7bc5e6b31fdb5aa94f14cdef3054938e5200ca62356e2fbfcff31bab056ebaa5206a4bdf6
+SHA512 (libmimalloc-sys-0.1.44.crate) = 18de89a1084ed2da37f9ea6357289e40fe95d86e8de2ee4567bba5453c2f622a116473e2baffeb086cdf814a4b7b12f6e05563992b0b88cf939abcc5a2584fc2