diff --git a/README.md b/README.md
index 699de10..2fbf008 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-sole <a href="https://travis-ci.org/r-lyeh/sole"><img src="https://api.travis-ci.org/r-lyeh/sole.svg?branch=master" align="right" /></a>
+sole <a href="https://travis-ci.org/r-lyeh/sole"><img src="https://api.travis-ci.org/r-lyeh-archived/sole.svg?branch=master" align="right" /></a>
 ====
 
 - Sole is a lightweight C++11 library to generate universally unique identificators (UUID).
@@ -73,6 +73,7 @@ uuid v4 rebuilt : bdd55e2f-6f6b-4088-8703-ddedba9456a2 -> version=4,randbits=bdd
 - clang/g++ users: both `-std=c++11` and `-lrt` may be required when compiling `sole.cpp`
 
 ### Changelog
+- v1.0.4 (2022/04/09): Fix potential threaded issues (fix #18, PR #39) and a socket leak (fix #38)
 - v1.0.3 (2022/01/17): Merge fixes by @jasonwinterpixel(emscripten) + @jj-tetraquark(get_any_mac)
 - v1.0.2 (2021/03/16): Merge speed improvements by @vihangm
 - v1.0.1 (2017/05/16): Improve UUID4 and base62 performance; Fix warnings
diff --git a/sole.hpp b/sole.hpp
index 0658553..8673774 100644
--- a/sole.hpp
+++ b/sole.hpp
@@ -54,7 +54,8 @@
 
 // public API
 
-#define SOLE_VERSION "1.0.3" /* (2022/01/17): Merge fixes by @jasonwinterpixel(emscripten) + @jj-tetraquark(get_any_mac)
+#define SOLE_VERSION "1.0.4" /* (2022/04/09): Fix potential threaded issues (fix #18, PR #39) and a socket leak (fix #38)
+#define SOLE_VERSION "1.0.3" // (2022/01/17): Merge fixes by @jasonwinterpixel(emscripten) + @jj-tetraquark(get_any_mac)
 #define SOLE_VERSION "1.0.2" // (2021/03/16): Merge speed improvements by @vihangm
 #define SOLE_VERSION "1.0.1" // (2017/05/16): Improve UUID4 and base62 performance; fix warnings
 #define SOLE_VERSION "1.0.0" // (2016/02/03): Initial semver adherence; Switch to header-only; Remove warnings */
@@ -601,7 +602,7 @@ namespace sole {
             int s = socket(PF_INET, SOCK_DGRAM, 0);
             if (s == -1) continue;
 
-            if (std::strcmp("lo", ifap->ifa_name) == 0) continue; // loopback address is zero
+            if (std::strcmp("lo", ifap->ifa_name) == 0) { close(s); continue;}  // loopback address is zero
 
             std::strcpy(ifr.ifr_name, ifap->ifa_name);
             int rc = ioctl(s, SIOCGIFHWADDR, &ifr);
@@ -664,8 +665,8 @@ namespace sole {
     // UUID implementations
 
     inline uuid uuid4() {
-        static std::random_device rd;
-        static std::uniform_int_distribution<uint64_t> dist(0, (uint64_t)(~0));
+        static $msvc(__declspec(thread)) $melse(__thread) std::random_device rd;
+        static $msvc(__declspec(thread)) $melse(__thread) std::uniform_int_distribution<uint64_t> dist(0, (uint64_t)(~0));
 
         uuid my;