diff --git a/Dockerfile b/Dockerfile
index f8f64115f..4024885da 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -46,6 +46,7 @@ COPY scripts/phpspy_build.sh .
 RUN ./phpspy_build.sh
 
 # async-profiler
+# requires CentOS 6, so the built DSO can be loaded into machines running with old glibc.
 # centos:6
 FROM centos@sha256:dec8f471302de43f4cfcf82f56d99a5227b5ea1aa6d02fa56344986e1f4610e7 AS async-profiler-builder
 COPY scripts/async_profiler_env.sh .
diff --git a/gprofiler/__init__.py b/gprofiler/__init__.py
index c72e3798a..1436d8fe8 100644
--- a/gprofiler/__init__.py
+++ b/gprofiler/__init__.py
@@ -1 +1 @@
-__version__ = "1.1.4"
+__version__ = "1.1.6"
diff --git a/pyi.Dockerfile b/pyi.Dockerfile
index 8e630ac04..8abd49dfa 100644
--- a/pyi.Dockerfile
+++ b/pyi.Dockerfile
@@ -35,6 +35,8 @@ COPY scripts/phpspy_build.sh .
 RUN ./phpspy_build.sh
 
 # async-profiler
+# requires CentOS 6, so the built DSO can be loaded into machines running with old glibc.
+# centos:6
 FROM centos@sha256:dec8f471302de43f4cfcf82f56d99a5227b5ea1aa6d02fa56344986e1f4610e7 AS async-profiler-builder
 COPY scripts/async_profiler_env.sh .
 RUN ./async_profiler_env.sh
diff --git a/scripts/async_profiler_build.sh b/scripts/async_profiler_build.sh
index cb8e09f34..a42a0d995 100755
--- a/scripts/async_profiler_build.sh
+++ b/scripts/async_profiler_build.sh
@@ -5,10 +5,14 @@
 #
 set -euo pipefail
 
-VERSION=v2.0g3
+VERSION=v2.0g4
+GIT_REV=9d29169e34abc004f534a85ba6a4cf8920250381
 OUTPUT=async-profiler-2.0-linux-x64.tar.gz
 
-git clone --depth 1 -b "$VERSION" https://github.com/Granulate/async-profiler.git && cd async-profiler && git reset --hard 51447a849d686e899c1cd393e83f0f7c41685d95
+git clone --depth 1 -b "$VERSION" https://github.com/Granulate/async-profiler.git && cd async-profiler && git reset --hard "$GIT_REV"
+set +eu  # this funny script has errors :shrug:
+source scl_source enable devtoolset-7
+set -eu
 make release
 
 # add a version file to the build directory
diff --git a/scripts/async_profiler_env.sh b/scripts/async_profiler_env.sh
index 8839eb4a4..9c8c9717f 100755
--- a/scripts/async_profiler_env.sh
+++ b/scripts/async_profiler_env.sh
@@ -5,9 +5,14 @@
 #
 set -euo pipefail
 
-# fix legacy yum repos. slightly adapted from https://stackoverflow.com/a/53848450
-# this basically comments out all mirrorlist URLs, uncomments all baseurls (all seem to be commented)
-# and replaces the domain from mirror.centos.org to vault.centos.org.
-sed -i -e 's|^mirrorlist|#mirrorlist|' -e 's|^# *baseurl|baseurl|' -e 's|mirror.centos.org|vault.centos.org|' /etc/yum.repos.d/*
+function fix_legacy_repos() {
+    # fix legacy yum repos. slightly adapted from https://stackoverflow.com/a/53848450
+    # this basically comments out all mirrorlist URLs, uncomments all baseurls (all seem to be commented)
+    # and replaces the domain from mirror.centos.org to vault.centos.org.
+    sed -i -e 's|^mirrorlist|#mirrorlist|' -e 's|^# *baseurl|baseurl|' -e 's|mirror.centos.org|vault.centos.org|' /etc/yum.repos.d/*
+}
 
-yum install -y gcc g++ gcc-c++.x86_64 make java-1.8.0-openjdk-devel glibc-static git
+fix_legacy_repos
+yum install -y centos-release-scl
+fix_legacy_repos  # fix again, after adding new scl repos
+yum install -y devtoolset-7-toolchain make java-1.8.0-openjdk-devel glibc-static git