diff --git a/test/docker/arch b/test/docker/arch
index 0d4731d61..ae810ac06 100644
--- a/test/docker/arch
+++ b/test/docker/arch
@@ -15,12 +15,12 @@ RUN git clean -dfx
 RUN git submodule init
 RUN git submodule update
 RUN cmake -DCMAKE_BUILD_TYPE=debug .
-RUN make -j2
+RUN make -j8
 RUN make install
 RUN task --version
 
 # Setup tests
 WORKDIR /root/code/test/
-RUN make
+RUN make -j8
 
 CMD ["bash", "-c", "./run_all -v ; cat all.log | grep 'not ok' ; ./problems"]
diff --git a/test/docker/centos7 b/test/docker/centos7
index 59204f4bf..8cb75e03a 100644
--- a/test/docker/centos7
+++ b/test/docker/centos7
@@ -19,12 +19,12 @@ RUN git clean -dfx
 RUN git submodule init
 RUN git submodule update
 RUN source scl_source enable devtoolset-7; cmake -DCMAKE_BUILD_TYPE=debug .
-RUN source scl_source enable devtoolset-7; make -j2
+RUN source scl_source enable devtoolset-7; make -j8
 RUN source scl_source enable devtoolset-7; make install
 RUN task --version
 
 # Setup tests
 WORKDIR /root/code/test/
-RUN source scl_source enable devtoolset-7; make
+RUN source scl_source enable devtoolset-7; make -j8
 
 CMD ["bash", "-c", "./run_all -v ; cat all.log | grep 'not ok' ; ./problems"]
diff --git a/test/docker/centos8 b/test/docker/centos8
index 70bd196d4..b1524cca1 100644
--- a/test/docker/centos8
+++ b/test/docker/centos8
@@ -18,12 +18,12 @@ RUN git clean -dfx
 RUN git submodule init
 RUN git submodule update
 RUN cmake -DCMAKE_BUILD_TYPE=debug .
-RUN make -j2
+RUN make -j8
 RUN make install
 RUN task --version
 
 # Setup tests
 WORKDIR /root/code/test/
-RUN make
+RUN make -j8
 
 CMD ["bash", "-c", "./run_all -v ; cat all.log | grep 'not ok' ; ./problems"]
diff --git a/test/docker/debianstable b/test/docker/debianstable
index 9a64e42d6..d36f0356c 100644
--- a/test/docker/debianstable
+++ b/test/docker/debianstable
@@ -16,12 +16,12 @@ RUN git clean -dfx
 RUN git submodule init
 RUN git submodule update
 RUN cmake -DCMAKE_BUILD_TYPE=debug .
-RUN make -j2
+RUN make -j8
 RUN make install
 RUN task --version
 
 # Setup tests
 WORKDIR /root/code/test/
-RUN make
+RUN make -j8
 
 CMD ["bash", "-c", "./run_all -v ; cat all.log | grep 'not ok' ; ./problems"]
diff --git a/test/docker/debiantesting b/test/docker/debiantesting
index f32039670..f38026c21 100644
--- a/test/docker/debiantesting
+++ b/test/docker/debiantesting
@@ -16,12 +16,12 @@ RUN git clean -dfx
 RUN git submodule init
 RUN git submodule update
 RUN cmake -DCMAKE_BUILD_TYPE=debug .
-RUN make -j2
+RUN make -j8
 RUN make install
 RUN task --version
 
 # Setup tests
 WORKDIR /root/code/test/
-RUN make
+RUN make -j8
 
 CMD ["bash", "-c", "./run_all -v ; cat all.log | grep 'not ok' ; ./problems"]
diff --git a/test/docker/fedora31 b/test/docker/fedora31
index adf95bac6..e8a511b9e 100644
--- a/test/docker/fedora31
+++ b/test/docker/fedora31
@@ -15,12 +15,12 @@ RUN git clean -dfx
 RUN git submodule init
 RUN git submodule update
 RUN cmake -DCMAKE_BUILD_TYPE=debug .
-RUN make -j2
+RUN make -j8
 RUN make install
 RUN task --version
 
 # Setup tests
 WORKDIR /root/code/test/
-RUN make
+RUN make -j8
 
 CMD ["bash", "-c", "./run_all -v ; cat all.log | grep 'not ok' ; ./problems"]
diff --git a/test/docker/fedora32 b/test/docker/fedora32
index ed47f8b98..d6583eeca 100644
--- a/test/docker/fedora32
+++ b/test/docker/fedora32
@@ -15,12 +15,12 @@ RUN git clean -dfx
 RUN git submodule init
 RUN git submodule update
 RUN cmake -DCMAKE_BUILD_TYPE=debug .
-RUN make -j2
+RUN make -j8
 RUN make install
 RUN task --version
 
 # Setup tests
 WORKDIR /root/code/test/
-RUN make
+RUN make -j8
 
 CMD ["bash", "-c", "./run_all -v ; cat all.log | grep 'not ok' ; ./problems"]
diff --git a/test/docker/fedora33 b/test/docker/fedora33
index c666edd01..94d8be379 100644
--- a/test/docker/fedora33
+++ b/test/docker/fedora33
@@ -15,12 +15,12 @@ RUN git clean -dfx
 RUN git submodule init
 RUN git submodule update
 RUN cmake -DCMAKE_BUILD_TYPE=debug .
-RUN make -j2
+RUN make -j8
 RUN make install
 RUN task --version
 
 # Setup tests
 WORKDIR /root/code/test/
-RUN make
+RUN make -j8
 
 CMD ["bash", "-c", "./run_all -v ; cat all.log | grep 'not ok' ; ./problems"]
diff --git a/test/docker/gentoo b/test/docker/gentoo
index 2eb352527..647eac842 100644
--- a/test/docker/gentoo
+++ b/test/docker/gentoo
@@ -21,12 +21,12 @@ RUN git clean -dfx
 RUN git submodule init
 RUN git submodule update
 RUN cmake -DCMAKE_BUILD_TYPE=debug .
-RUN make -j2
+RUN make -j8
 RUN make install
 RUN task --version
 
 # Setup tests
 WORKDIR /root/code/test/
-RUN make
+RUN make -j8
 
 CMD ["bash", "-c", "./run_all -v ; cat all.log | grep 'not ok' ; ./problems"]
diff --git a/test/docker/opensuse1500 b/test/docker/opensuse1500
index 9584635d1..6b896a073 100644
--- a/test/docker/opensuse1500
+++ b/test/docker/opensuse1500
@@ -14,12 +14,12 @@ RUN git clean -dfx
 RUN git submodule init
 RUN git submodule update
 RUN cmake -DCMAKE_BUILD_TYPE=debug .
-RUN make -j2
+RUN make -j8
 RUN make install
 RUN task --version
 
 # Setup tests
 WORKDIR /root/code/test/
-RUN make
+RUN make -j8
 
 CMD ["bash", "-c", "./run_all -v ; cat all.log | grep 'not ok' ; ./problems"]
diff --git a/test/docker/ubuntu1804 b/test/docker/ubuntu1804
index 36bdb4500..77bd33b4c 100644
--- a/test/docker/ubuntu1804
+++ b/test/docker/ubuntu1804
@@ -16,12 +16,12 @@ RUN git clean -dfx
 RUN git submodule init
 RUN git submodule update
 RUN cmake -DCMAKE_BUILD_TYPE=debug .
-RUN make -j2
+RUN make -j8
 RUN make install
 RUN task --version
 
 # Setup tests
 WORKDIR /root/code/test/
-RUN make
+RUN make -j8
 
 CMD ["bash", "-c", "./run_all -v ; cat all.log | grep 'not ok' ; ./problems"]
diff --git a/test/docker/ubuntu2004 b/test/docker/ubuntu2004
index 5beafcc37..7e34f56a9 100644
--- a/test/docker/ubuntu2004
+++ b/test/docker/ubuntu2004
@@ -16,12 +16,12 @@ RUN git clean -dfx
 RUN git submodule init
 RUN git submodule update
 RUN cmake -DCMAKE_BUILD_TYPE=debug .
-RUN make -j2
+RUN make -j8
 RUN make install
 RUN task --version
 
 # Setup tests
 WORKDIR /root/code/test/
-RUN make
+RUN make -j8
 
 CMD ["bash", "-c", "./run_all -v ; cat all.log | grep 'not ok' ; ./problems"]