diff --git a/.github/workflows/unix.yml b/.github/workflows/unix.yml
index 60b25de71..3f1306cff 100644
--- a/.github/workflows/unix.yml
+++ b/.github/workflows/unix.yml
@@ -52,6 +52,7 @@ jobs:
             avx2: On
             webui: On
             tests: Off
+            mimalloc: Off
             strip: strip
           - name: macos-noavx2
             cxx: clang++
@@ -64,6 +65,7 @@ jobs:
             avx2: Off
             webui: On
             tests: On
+            mimalloc: Off
             strip: strip
           - name: linux-amd64-debug
             cxx: g++-10
@@ -74,6 +76,7 @@ jobs:
             avx2: On
             webui: Off
             tests: On
+            mimalloc: Off
             emulator: valgrind --error-exitcode=1
             install: ninja-build valgrind
           - name: linux-amd64-clang
@@ -87,6 +90,7 @@ jobs:
             avx2: On
             webui: Off
             tests: On
+            mimalloc: Off
             install: ninja-build
           - name: linux-clang-tidy
             cxx: clang++-12
@@ -100,6 +104,7 @@ jobs:
             avx2: On
             webui: Off
             tests: On
+            mimalloc: Off
             install: ninja-build
           - name: linux-clang-sanitizer
             cxx: clang++-12
@@ -113,6 +118,7 @@ jobs:
             avx2: On
             webui: Off
             tests: On
+            mimalloc: Off
             install: ninja-build
           - name: linux-amd64-release
             os: ubuntu-20.04
@@ -130,6 +136,7 @@ jobs:
             avx2: On
             webui: On
             tests: On
+            mimalloc: On
             strip: /opt/x86_64-multilib-linux-musl/x86_64-multilib-linux-musl/bin/strip
             install: ninja-build
           - name: linux-amd64-noavx-release
@@ -148,6 +155,7 @@ jobs:
             avx2: Off
             webui: On
             tests: On
+            mimalloc: Off
             strip: /opt/x86_64-multilib-linux-musl/x86_64-multilib-linux-musl/bin/strip
             install: ninja-build
           - name: linux-x86-release
@@ -170,6 +178,7 @@ jobs:
             avx2: Off
             webui: On
             tests: On
+            mimalloc: Off
             strip: /opt/x86_64-multilib-linux-musl/x86_64-multilib-linux-musl/bin/strip
             install: ninja-build
           - name: linux-arm-release
@@ -191,6 +200,7 @@ jobs:
             avx2: Off
             webui: On
             tests: On
+            mimalloc: Off
             strip: /opt/arm-unknown-linux-musleabihf/arm-unknown-linux-musleabihf/bin/strip
             install: ninja-build qemu-user-static
             emulator: qemu-arm-static
@@ -213,6 +223,7 @@ jobs:
             avx2: Off
             webui: On
             tests: On
+            mimalloc: Off
             strip: /opt/aarch64-unknown-linux-musl/aarch64-unknown-linux-musl/bin/strip
             install: ninja-build qemu-user-static
             emulator: qemu-aarch64-static
@@ -289,6 +300,7 @@ jobs:
             -DMOTIS_LINT=${{ matrix.config.lint }} \
             -DMOTIS_AVX=${{ matrix.config.avx }} \
             -DMOTIS_AVX2=${{ matrix.config.avx2 }} \
+            -DMOTIS_MIMALLOC=${{ matrix.config.mimalloc }} \
             -DCTX_ASAN=${{ contains(matrix.config.cxxflags, '-fsanitize=address') }} \
             -DCTX_VALGRIND=${{ matrix.config.cc == 'gcc-10' && matrix.config.mode == 'Debug' }} \
             -DMOTIS_WITH_WEBUI=${{ matrix.config.webui }}
diff --git a/.pkg b/.pkg
index 9291f546e..e27e0635c 100644
--- a/.pkg
+++ b/.pkg
@@ -5,7 +5,7 @@
 [cista]
   url=git@github.com:felixguendling/cista.git
   branch=master
-  commit=fb4d35eeb72e86cd3768a896f5068fc6ba31b5e8
+  commit=eb1b0199eef401493db0d2dd735a14481b823083
 [conf]
   url=git@github.com:motis-project/conf.git
   branch=master
@@ -86,3 +86,7 @@
   url=git@github.com:motis-project/boost.git
   branch=master
   commit=bca212ca286121db1e7eb2efa9ee8de626633481
+[mimalloc]
+  url=git@github.com:motis-project/mimalloc.git
+  branch=master
+  commit=076f815cece59e0a0ee08237c8fbba75465452b6
diff --git a/CMakeLists.txt b/CMakeLists.txt
index bb88c723e..894052060 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -37,6 +37,7 @@ endif()
 
 set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
 
+option(MOTIS_MIMALLOC "use mimalloc" OFF)
 option(MOTIS_AVX "enable AVX functions" ON)
 option(MOTIS_AVX2 "enable AVX2 + FMA functions" ON)
 
@@ -97,6 +98,9 @@ configure_file (
 ################################
 find_package(Threads)
 include(cmake/pkg.cmake)
+if (MOTIS_MIMALLOC)
+  target_link_libraries(cista INTERFACE mimalloc-static)
+endif()
 add_subdirectory(modules/ris/gtfsrtpb)
 
 
@@ -195,6 +199,10 @@ endforeach(module)
 add_subdirectory(base/bootstrap EXCLUDE_FROM_ALL)
 add_subdirectory(base/launcher)
 
+if (MOTIS_MIMALLOC)
+  target_link_libraries(motis mimalloc-obj)
+endif()
+
 if(MOTIS_WITH_WEBUI)
   add_subdirectory(ui/web)
 endif()