diff --git a/.gitlab-ci/Dockerfile b/.gitlab-ci/Dockerfile
index 69434ca09..1089d0cdf 100644
--- a/.gitlab-ci/Dockerfile
+++ b/.gitlab-ci/Dockerfile
@@ -16,10 +16,16 @@ RUN dnf -y install \
     libmount-devel \
     libselinux-devel \
     libxslt \
-    meson \
+    ninja-build \
     pcre-devel \
+    python3 \
+    python3-pip \
+    python3-wheel \
     systemtap-sdt-devel \
-    zlib-devel
+    zlib-devel \
+ && dnf clean all
+
+RUN pip3 install meson
 
 ARG HOST_USER_ID=5555
 ENV HOST_USER_ID ${HOST_USER_ID}
@@ -28,4 +34,4 @@ RUN useradd -u $HOST_USER_ID -ms /bin/bash user
 USER user
 WORKDIR /home/user
 
-ENV LANG C.utf8
+ENV LANG C.UTF-8