diff --git a/.gitignore b/.gitignore
index a07ed95..bcab3b9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -341,3 +341,4 @@
 /rust-1.51.0-powerpc64le-unknown-linux-gnu.tar.xz
 /rust-1.51.0-s390x-unknown-linux-gnu.tar.xz
 /rust-1.51.0-x86_64-unknown-linux-gnu.tar.xz
+/rust-openssl-cc1c74c1a313ac46b5fa3da602a46cff6fdd06a2.tar.gz
diff --git a/rust-openssl-300.patch b/rust-openssl-300.patch
new file mode 100644
index 0000000..b796a05
--- /dev/null
+++ b/rust-openssl-300.patch
@@ -0,0 +1,30 @@
+--- rustc-1.52.0-src/Cargo.lock.orig	2021-05-03 13:57:16.000000000 -0700
++++ rustc-1.52.0-src/Cargo.lock	2021-05-05 17:33:12.300459810 -0700
+@@ -2402,15 +2402,15 @@ dependencies = [
+ 
+ [[package]]
+ name = "openssl"
+-version = "0.10.30"
++version = "0.10.33"
+ source = "registry+https://github.com/rust-lang/crates.io-index"
+ checksum = "8d575eff3665419f9b83678ff2815858ad9d11567e082f5ac1814baba4e2bcb4"
+ dependencies = [
+  "bitflags",
+- "cfg-if 0.1.10",
++ "cfg-if 1.0.0",
+  "foreign-types",
+- "lazy_static",
+  "libc",
++ "once_cell",
+  "openssl-sys",
+ ]
+ 
+@@ -2431,7 +2431,7 @@ dependencies = [
+ 
+ [[package]]
+ name = "openssl-sys"
+-version = "0.9.58"
++version = "0.9.61"
+ source = "registry+https://github.com/rust-lang/crates.io-index"
+ checksum = "a842db4709b604f0fe5d1170ae3565899be2ad3d9cbc72dedc789ac0511f78de"
+ dependencies = [
diff --git a/rust.spec b/rust.spec
index c24429f..0b684b5 100644
--- a/rust.spec
+++ b/rust.spec
@@ -84,6 +84,13 @@ Patch101:       rustc-1.51.0-disable-http2.patch
 # (affects RHEL6 kernels when building for RHEL7)
 Patch102:       rustc-1.51.0-no-default-pie.patch
 
+# Initial support for OpenSSL 3.0.0-alpha15
+# https://github.com/sfackler/rust-openssl/pull/1264
+%global rust_openssl_commit cc1c74c1a313ac46b5fa3da602a46cff6fdd06a2
+%global rust_openssl rust-openssl-%{rust_openssl_commit}
+Source103:      https://github.com/sfackler/rust-openssl/archive/%{rust_openssl_commit}/%{rust_openssl}.tar.gz
+Patch103:       rust-openssl-300.patch
+
 
 # Get the Rust triple for any arch.
 %{lua: function rust_triple(arch)
@@ -442,6 +449,10 @@ rm -rf vendor/libgit2-sys/libgit2/
 rm -rf vendor/libssh2-sys/
 %endif
 
+rm -rf vendor/openssl{,-sys}/*
+tar -xf %{SOURCE103} -C vendor/ --strip-components=1 %{rust_openssl}/openssl{,-sys}/
+%patch103 -p1
+
 # This only affects the transient rust-installer, but let it use our dynamic xz-libs
 sed -i.lzma -e '/LZMA_API_STATIC/d' src/bootstrap/tool.rs
 
@@ -735,6 +746,7 @@ export %{rust_env}
 * Thu May 13 2021 Josh Stone <jistone@redhat.com> - 1.52.1-1
 - Update to 1.52.1. Includes security fixes for CVE-2020-36323,
   CVE-2021-28876, CVE-2021-28878, CVE-2021-28879, and CVE-2021-31162.
+- Initial support for OpenSSL 3.0.0-alpha15
 
 * Wed Apr 28 2021 Josh Stone <jistone@redhat.com> - 1.51.0-1
 - Update to 1.51.0. Includes security fixes for CVE-2021-28875
diff --git a/sources b/sources
index 0ec5511..26a6f58 100644
--- a/sources
+++ b/sources
@@ -1 +1,2 @@
 SHA512 (rustc-1.52.1-src.tar.xz) = 55f5053ce40d4eba4663052817aef6a6275139ca229c89cd1ec44711458b412720203301d8c7975aac5720a91fcaf21847f8184f641cbb0004f722520283c73c
+SHA512 (rust-openssl-cc1c74c1a313ac46b5fa3da602a46cff6fdd06a2.tar.gz) = 5a267b255db3ebf66d5bcff9a2f03f4c8cebd74486daa9bef35426002898fb941c28bacb40972da96ddad8c17aae51919d18b72e326e9db47e32af2c8100ed37
diff --git a/sources-bootstrap b/sources-bootstrap
index 8b63a38..cd686aa 100644
--- a/sources-bootstrap
+++ b/sources-bootstrap
@@ -4,3 +4,4 @@ SHA512 (rust-1.51.0-i686-unknown-linux-gnu.tar.xz) = 05d08e44827dcba8197667deb9a
 SHA512 (rust-1.51.0-powerpc64le-unknown-linux-gnu.tar.xz) = b53a741d1d75637fb31ddb0364e1f91427c3818ca145f819b906d13c32c638ae77fbaa567a6220b6bf69f38cc00d2b95615778a86f4acadd63efe2e62b1b01ef
 SHA512 (rust-1.51.0-s390x-unknown-linux-gnu.tar.xz) = a72ad31c6306f939c4f963133ddc0b3fabc9e506bdff5e318f5275658b7271a675a51d208d306d94fb01739cbcf0f62f018fc7490ca6db54b301852202749d16
 SHA512 (rust-1.51.0-x86_64-unknown-linux-gnu.tar.xz) = 9f95045119bcd5ef7be54f5b5bdc9ebc6bd6c48437d90762a1cfbc03281882f81087e1877eecae9573ba5e7cd7c11ef5fed979034c57f45b6547cbfeb11eef6d
+SHA512 (rust-openssl-cc1c74c1a313ac46b5fa3da602a46cff6fdd06a2.tar.gz) = 5a267b255db3ebf66d5bcff9a2f03f4c8cebd74486daa9bef35426002898fb941c28bacb40972da96ddad8c17aae51919d18b72e326e9db47e32af2c8100ed37