diff --git a/CHANGELOG.md b/CHANGELOG.md
index e848e5b8..1d96271f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@ All notable changes to this project will be documented in this file.
 
 ## [unreleased] - 2019-06-09
 ### Changed
+- cobra_to_sentry / backtraces are reversed and line number is not extracted correctly
 - mbedtls and zlib are searched with find_package, and we use the vendored version if nothing is found
 - travis CI uses g++ on Linux
 
diff --git a/DOCKER_VERSION b/DOCKER_VERSION
index fcdb2e10..c5106e6d 100644
--- a/DOCKER_VERSION
+++ b/DOCKER_VERSION
@@ -1 +1 @@
-4.0.0
+4.0.4
diff --git a/ws/IXSentryClient.cpp b/ws/IXSentryClient.cpp
index f6462a89..3cc3714f 100644
--- a/ws/IXSentryClient.cpp
+++ b/ws/IXSentryClient.cpp
@@ -72,7 +72,6 @@ namespace ix
         std::string line;
         std::stringstream tokenStream(stack);
 
-        std::stringstream ss;
         std::smatch group;
 
         while (std::getline(tokenStream, line))
@@ -84,6 +83,7 @@ namespace ix
                 const auto linenoStr = group.str(2);
                 const auto function = group.str(3);
 
+                std::stringstream ss;
                 ss << linenoStr;
                 uint64_t lineno;
                 ss >> lineno;
@@ -97,6 +97,8 @@ namespace ix
             }
         }
 
+        std::reverse(frames.begin(), frames.end());
+
         return frames;
     }